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[r]" accesskey="r"><span>Newidiadau diweddar</span></a></li><li id="n-randompage" class="mw-list-item"><a href="/wiki/Arbennig:Random" title="Llwytho tudalen ar hap [x]" accesskey="x"><span>Erthygl ar hap</span></a></li><li id="n-help" class="mw-list-item"><a href="/wiki/Wicipedia:Cymorth" title="Tudalennau cymorth"><span>Cymorth</span></a></li><li id="n-specialpages" class="mw-list-item"><a href="/wiki/Arbennig:SpecialPages"><span>Tudalennau arbennig</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> <a href="/wiki/Hafan" class="mw-logo"> <img class="mw-logo-icon" src="/static/images/icons/wikipedia.png" alt="" aria-hidden="true" height="50" width="50"> <span class="mw-logo-container skin-invert"> <img class="mw-logo-wordmark" alt="Wicipedia" src="/static/images/mobile/copyright/wikipedia-wordmark-cy.svg" style="width: 7.5em; height: 1.125em;"> <img class="mw-logo-tagline" alt="" src="/static/images/mobile/copyright/wikipedia-tagline-cy.svg" width="120" height="13" style="width: 7.5em; height: 0.8125em;"> </span> </a> </div> <div class="vector-header-end"> <div id="p-search" role="search" class="vector-search-box-vue vector-search-box-collapses vector-search-box-show-thumbnail vector-search-box-auto-expand-width vector-search-box"> <a href="/wiki/Arbennig:Search" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only search-toggle" title="Chwilio Wicipedia [f]" accesskey="f"><span class="vector-icon mw-ui-icon-search mw-ui-icon-wikimedia-search"></span> <span>Chwilio</span> </a> <div class="vector-typeahead-search-container"> <div class="cdx-typeahead-search cdx-typeahead-search--show-thumbnail cdx-typeahead-search--auto-expand-width"> <form action="/w/index.php" id="searchform" class="cdx-search-input cdx-search-input--has-end-button"> <div id="simpleSearch" class="cdx-search-input__input-wrapper" data-search-loc="header-moved"> <div class="cdx-text-input cdx-text-input--has-start-icon"> <input class="cdx-text-input__input" type="search" name="search" placeholder="Chwilio Wicipedia" aria-label="Chwilio Wicipedia" autocapitalize="sentences" title="Chwilio Wicipedia [f]" accesskey="f" id="searchInput" > <span class="cdx-text-input__icon cdx-text-input__start-icon"></span> </div> <input type="hidden" name="title" value="Arbennig:Search"> </div> <button class="cdx-button cdx-search-input__end-button">Chwilio</button> </form> </div> </div> </div> <nav class="vector-user-links vector-user-links-wide" aria-label="Offer personol"> <div class="vector-user-links-main"> <div id="p-vector-user-menu-preferences" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-userpage" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <nav class="vector-appearance-landmark" aria-label="Gwedd"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Newidiwch ymddangosiad maint ffont, lled a lliw y dudalen" > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="Gwedd" > <label id="vector-appearance-dropdown-label" for="vector-appearance-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">Gwedd</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="https://donate.wikimedia.org/?wmf_source=donate&wmf_medium=sidebar&wmf_campaign=cy.wikipedia.org&uselang=cy" class=""><span>Rhoi</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Arbennig:CreateAccount&returnto=David+Crystal" title="Rydym yn argymell eich bod yn creu cyfri ac yn menwgofnodi. 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[o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Mewngofnodi</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Tudalennau ar gyfer golygyddion allgofnodedig <a href="/wiki/Cymorth:Cyflwyniad" aria-label="Dysgu mwy am olygu"><span>dysgu mwy</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Arbennig:MyTalk" title="Sgwrs ynglŷn â golygiadau o'r cyfeiriad IP hwn [n]" accesskey="n"><span>Sgwrs</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Safle"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Cynnwys" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Cynnwys</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">symud i'r bar ochr</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">cuddio</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Y dechrau</div> </a> </li> <li id="toc-Bywyd_cynnar_ac_addysg" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Bywyd_cynnar_ac_addysg"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Bywyd cynnar ac addysg</span> </div> </a> <ul id="toc-Bywyd_cynnar_ac_addysg-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Gyrfa" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Gyrfa"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Gyrfa</span> </div> </a> <ul id="toc-Gyrfa-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Cyfeiriadau" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Cyfeiriadau"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Cyfeiriadau</span> </div> </a> <ul id="toc-Cyfeiriadau-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Dolenni_allanol" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Dolenni_allanol"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Dolenni allanol</span> </div> </a> <ul id="toc-Dolenni_allanol-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Cynnwys" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" title="Tabl Cynnwys" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Toglo'r tabl cynnwys" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Toglo'r tabl cynnwys</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">David Crystal</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Ewch i erthygl mewn iaith arall. Ar gael mewn 33 iaith" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-33" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">33 iaith</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%AF%D9%8A%D9%81%D9%8A%D8%AF_%D9%83%D8%B1%D9%8A%D8%B3%D8%AA%D8%A7%D9%84" title="ديفيد كريستال - Arabeg" lang="ar" hreflang="ar" data-title="ديفيد كريستال" data-language-autonym="العربية" data-language-local-name="Arabeg" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-arz mw-list-item"><a href="https://arz.wikipedia.org/wiki/%D8%AF%D9%8A%D9%81%D9%8A%D8%AF_%D9%83%D8%B1%D9%8A%D8%B3%D8%AA%D8%A7%D9%84" title="ديفيد كريستال - Arabeg yr Aifft" lang="arz" hreflang="arz" data-title="ديفيد كريستال" data-language-autonym="مصرى" data-language-local-name="Arabeg yr Aifft" class="interlanguage-link-target"><span>مصرى</span></a></li><li class="interlanguage-link interwiki-azb mw-list-item"><a href="https://azb.wikipedia.org/wiki/%D8%AF%DB%8C%D9%88%DB%8C%D8%AF_%DA%A9%D8%B1%DB%8C%D8%B3%D8%AA%D8%A7%D9%84" title="دیوید کریستال - South Azerbaijani" lang="azb" hreflang="azb" data-title="دیوید کریستال" data-language-autonym="تۆرکجه" data-language-local-name="South Azerbaijani" class="interlanguage-link-target"><span>تۆرکجه</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%A1%E0%A7%87%E0%A6%AD%E0%A6%BF%E0%A6%A1_%E0%A6%95%E0%A7%8D%E0%A6%B0%E0%A6%BF%E0%A6%B8%E0%A7%8D%E0%A6%9F%E0%A6%BE%E0%A6%B2" title="ডেভিড ক্রিস্টাল - Bengaleg" lang="bn" hreflang="bn" data-title="ডেভিড ক্রিস্টাল" data-language-autonym="বাংলা" data-language-local-name="Bengaleg" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/David_Crystal" title="David Crystal - Catalaneg" lang="ca" hreflang="ca" data-title="David Crystal" data-language-autonym="Català" data-language-local-name="Catalaneg" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/David_Crystal" title="David Crystal - Tsieceg" lang="cs" hreflang="cs" data-title="David Crystal" data-language-autonym="Čeština" data-language-local-name="Tsieceg" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/David_Crystal" title="David Crystal - Almaeneg" lang="de" hreflang="de" data-title="David Crystal" data-language-autonym="Deutsch" data-language-local-name="Almaeneg" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/David_Crystal" title="David Crystal - Saesneg" lang="en" hreflang="en" data-title="David Crystal" data-language-autonym="English" data-language-local-name="Saesneg" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/David_Crystal" title="David Crystal - Sbaeneg" lang="es" hreflang="es" data-title="David Crystal" data-language-autonym="Español" data-language-local-name="Sbaeneg" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/David_Crystal" title="David Crystal - Basgeg" lang="eu" hreflang="eu" data-title="David Crystal" data-language-autonym="Euskara" data-language-local-name="Basgeg" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%AF%DB%8C%D9%88%DB%8C%D8%AF_%DA%A9%D8%B1%DB%8C%D8%B3%D8%AA%D8%A7%D9%84" title="دیوید کریستال - Perseg" lang="fa" hreflang="fa" data-title="دیوید کریستال" data-language-autonym="فارسی" data-language-local-name="Perseg" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fo mw-list-item"><a href="https://fo.wikipedia.org/wiki/David_Crystal" title="David Crystal - Ffaröeg" lang="fo" hreflang="fo" data-title="David Crystal" data-language-autonym="Føroyskt" data-language-local-name="Ffaröeg" class="interlanguage-link-target"><span>Føroyskt</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/David_Crystal" title="David Crystal - Ffrangeg" lang="fr" hreflang="fr" data-title="David Crystal" data-language-autonym="Français" data-language-local-name="Ffrangeg" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-gd mw-list-item"><a href="https://gd.wikipedia.org/wiki/David_Crystal" title="David Crystal - Gaeleg yr Alban" lang="gd" hreflang="gd" data-title="David Crystal" data-language-autonym="Gàidhlig" data-language-local-name="Gaeleg yr Alban" class="interlanguage-link-target"><span>Gàidhlig</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/David_Crystal" title="David Crystal - Galisieg" lang="gl" hreflang="gl" data-title="David Crystal" data-language-autonym="Galego" data-language-local-name="Galisieg" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D4%B4%D5%A5%D5%B5%D5%BE%D5%AB%D5%A4_%D5%94%D6%80%D5%AB%D5%BD%D5%A9%D5%A1%D5%AC" title="Դեյվիդ Քրիսթալ - Armeneg" lang="hy" hreflang="hy" data-title="Դեյվիդ Քրիսթալ" data-language-autonym="Հայերեն" data-language-local-name="Armeneg" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-ia mw-list-item"><a href="https://ia.wikipedia.org/wiki/David_Crystal" title="David Crystal - Interlingua" lang="ia" hreflang="ia" data-title="David Crystal" data-language-autonym="Interlingua" data-language-local-name="Interlingua" class="interlanguage-link-target"><span>Interlingua</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/David_Crystal" title="David Crystal - Eidaleg" lang="it" hreflang="it" data-title="David Crystal" data-language-autonym="Italiano" data-language-local-name="Eidaleg" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%8D%B0%EC%9D%B4%EB%B9%84%EB%93%9C_%ED%81%AC%EB%A6%AC%EC%8A%A4%ED%84%B8" title="데이비드 크리스털 - Coreeg" lang="ko" hreflang="ko" data-title="데이비드 크리스털" data-language-autonym="한국어" data-language-local-name="Coreeg" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/David_Crystal" title="David Crystal - Lladin" lang="la" hreflang="la" data-title="David Crystal" data-language-autonym="Latina" data-language-local-name="Lladin" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%A1%E0%A9%87%E0%A8%B5%E0%A8%BF%E0%A8%A1_%E0%A8%95%E0%A9%8D%E0%A8%B0%E0%A8%BF%E0%A8%B8%E0%A8%9F%E0%A8%B2" title="ਡੇਵਿਡ ਕ੍ਰਿਸਟਲ - Pwnjabeg" lang="pa" hreflang="pa" data-title="ਡੇਵਿਡ ਕ੍ਰਿਸਟਲ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="Pwnjabeg" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/David_Crystal" title="David Crystal - Pwyleg" lang="pl" hreflang="pl" data-title="David Crystal" data-language-autonym="Polski" data-language-local-name="Pwyleg" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/David_Crystal" title="David Crystal - Portiwgaleg" lang="pt" hreflang="pt" data-title="David Crystal" data-language-autonym="Português" data-language-local-name="Portiwgaleg" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/David_Crystal" title="David Crystal - Rwmaneg" lang="ro" hreflang="ro" data-title="David Crystal" data-language-autonym="Română" data-language-local-name="Rwmaneg" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9A%D1%80%D0%B8%D1%81%D1%82%D0%B0%D0%BB,_%D0%94%D1%8D%D0%B2%D0%B8%D0%B4" title="Кристал, Дэвид - Rwseg" lang="ru" hreflang="ru" data-title="Кристал, Дэвид" data-language-autonym="Русский" data-language-local-name="Rwseg" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/David_Crystal" title="David Crystal - Albaneg" lang="sq" hreflang="sq" data-title="David Crystal" data-language-autonym="Shqip" data-language-local-name="Albaneg" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%94%D0%B5%D1%98%D0%B2%D0%B8%D0%B4_%D0%9A%D1%80%D0%B8%D1%81%D1%82%D0%B0%D0%BB" title="Дејвид Кристал - Serbeg" lang="sr" hreflang="sr" data-title="Дејвид Кристал" data-language-autonym="Српски / srpski" data-language-local-name="Serbeg" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/David_Crystal" title="David Crystal - Swedeg" lang="sv" hreflang="sv" data-title="David Crystal" data-language-autonym="Svenska" data-language-local-name="Swedeg" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/David_Crystal" title="David Crystal - Tyrceg" lang="tr" hreflang="tr" data-title="David Crystal" data-language-autonym="Türkçe" data-language-local-name="Tyrceg" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%94%D0%B5%D0%B2%D1%96%D0%B4_%D0%9A%D1%80%D1%96%D1%81%D1%82%D0%B0%D0%BB" title="Девід Крістал - Wcreineg" lang="uk" hreflang="uk" data-title="Девід Крістал" data-language-autonym="Українська" data-language-local-name="Wcreineg" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Devid_Kristal" title="Devid Kristal - Wsbeceg" lang="uz" hreflang="uz" data-title="Devid Kristal" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="Wsbeceg" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E5%A4%A7%E5%8D%AB%C2%B7%E5%85%8B%E9%87%8C%E6%96%AF%E6%89%98" title="大卫·克里斯托 - Tsieinëeg" lang="zh" hreflang="zh" data-title="大卫·克里斯托" data-language-autonym="中文" data-language-local-name="Tsieinëeg" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/David_Crystal" title="David Crystal - Minnan" lang="nan" hreflang="nan" data-title="David Crystal" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="Minnan" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q471550#sitelinks-wikipedia" title="Golygu dolenni rhyngwici" class="wbc-editpage">Golygu dolenni</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Parthau"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/David_Crystal" title="Gweld y dudalen bwnc [c]" accesskey="c"><span>Erthygl</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Sgwrs:David_Crystal" rel="discussion" title="Sgwrsio am y dudalen [t]" accesskey="t"><span>Sgwrs</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Newid amrywiad iaith" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Cymraeg</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Golygon"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/David_Crystal"><span>Darllen</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=David_Crystal&veaction=edit" title="Golygu'r dudalen hon [v]" accesskey="v"><span>Golygu</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=David_Crystal&action=edit" title="Golygu cod ffynhonnell y dudalen hon [e]" accesskey="e"><span>Golygu cod</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=David_Crystal&action=history" title="Fersiynau cynt o'r dudalen hon. [h]" accesskey="h"><span>Gweld hanes</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Offer tudalen"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Blwch offer" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Blwch offer</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Blwch offer</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">symud i'r bar ochr</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">cuddio</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Rhagor o opsiynau" > <div class="vector-menu-heading"> Gweithredoedd </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/David_Crystal"><span>Darllen</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=David_Crystal&veaction=edit" title="Golygu'r dudalen hon [v]" accesskey="v"><span>Golygu</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=David_Crystal&action=edit" title="Golygu cod ffynhonnell y dudalen hon [e]" accesskey="e"><span>Golygu cod</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=David_Crystal&action=history"><span>Gweld hanes</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Cyffredinol </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Arbennig:WhatLinksHere/David_Crystal" title="Rhestr o bob tudalen sy'n cysylltu â hon [j]" accesskey="j"><span>Beth sy'n cysylltu yma</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Arbennig:RecentChangesLinked/David_Crystal" rel="nofollow" title="Newidiadau diweddar i dudalennau sydd yn cysylltu â hon [k]" accesskey="k"><span>Newidiadau perthnasol</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=David_Crystal&oldid=13445407" title="Dolen barhaol i'r fersiwn hwn y dudalen hon"><span>Dolen barhaol</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=David_Crystal&action=info" title="Mwy o wybodaeth am y dudalen hon"><span>Gwybodaeth am y dudalen</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Arbennig:CiteThisPage&page=David_Crystal&id=13445407&wpFormIdentifier=titleform" title="Gwybodaeth ar sut i gyfeirio at y dudalen hon"><span>Cyfeirio at y dudalen hon</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Arbennig:UrlShortener&url=https%3A%2F%2Fcy.wikipedia.org%2Fwiki%2FDavid_Crystal"><span>Cael URL byr</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Arbennig:QrCode&url=https%3A%2F%2Fcy.wikipedia.org%2Fwiki%2FDavid_Crystal"><span>Lawrlwytho cod QR</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Argraffu / allforio </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=Arbennig:Book&bookcmd=book_creator&referer=David+Crystal"><span>Llunio llyfr</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Arbennig:DownloadAsPdf&page=David_Crystal&action=show-download-screen"><span>Lawrlwytho fel PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=David_Crystal&printable=yes" title="Cynhyrchwch fersiwn o'r dudalen yn barod at ei hargraffu [p]" accesskey="p"><span>Fersiwn argraffu</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> Mewn prosiectau eraill </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="wb-otherproject-link wb-otherproject-commons mw-list-item"><a href="https://commons.wikimedia.org/wiki/Category:David_Crystal" hreflang="en"><span>Comin Wikimedia</span></a></li><li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q471550" title="Cysylltu i eitem ystorfa gysylltiedig [g]" accesskey="g"><span>Eitem Wicidata</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Offer tudalen"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Gwedd"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Gwedd</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">symud i'r bar ochr</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">cuddio</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Oddi ar Wicipedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="cy" dir="ltr"><table class="infobox biography vcard" style="width:22em"><tbody><tr><th colspan="2" style="text-align:center;font-size:125%;font-weight:bold"><span class="fn">David Crystal</span></th></tr><tr><td colspan="2" style="text-align:center"><span class="mw-default-size" typeof="mw:File/Frameless"><a href="/wiki/Delwedd:David_Crystal_2017.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/81/David_Crystal_2017.jpg/220px-David_Crystal_2017.jpg" decoding="async" width="220" height="298" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/81/David_Crystal_2017.jpg/330px-David_Crystal_2017.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/81/David_Crystal_2017.jpg/440px-David_Crystal_2017.jpg 2x" data-file-width="582" data-file-height="789" /></a></span></td></tr><tr><th scope="row">Ganwyd</th><td>6 Gorffennaf 1941 <span class="penicon autoconfirmed-show"><span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q471550?uselang=cy#P569" title="Edit this on Wikidata"><img alt="Edit this on Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></span><br /><span class="birthplace"><a href="/wiki/Lisburn" title="Lisburn">Lisburn</a> <span class="penicon autoconfirmed-show"><span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q471550?uselang=cy#P19" title="Edit this on Wikidata"><img alt="Edit this on Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></span></span></td></tr><tr><th scope="row">Dinasyddiaeth</th><td class="category"><span typeof="mw:File"><a href="/wiki/Delwedd:Flag_of_Wales.svg" class="mw-file-description" title="Baner Cymru"><img alt="Baner Cymru" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/dc/Flag_of_Wales.svg/22px-Flag_of_Wales.svg.png" decoding="async" width="22" height="13" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/dc/Flag_of_Wales.svg/33px-Flag_of_Wales.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/dc/Flag_of_Wales.svg/44px-Flag_of_Wales.svg.png 2x" data-file-width="800" data-file-height="480" /></a></span> <a href="/wiki/Cymru" title="Cymru">Cymru</a></td></tr><tr><th scope="row"><i>Alma mater</i></th><td><div class="plainlist"><ul style=""><li style=""><a href="/wiki/Coleg_Prifysgol_Llundain" title="Coleg Prifysgol Llundain">Coleg Prifysgol Llundain</a></li><li style="">St Mary's College <span class="penicon autoconfirmed-show"><span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q471550?uselang=cy#P69" title="Edit this on Wikidata"><img alt="Edit this on Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></span></li></ul></div></td></tr><tr><th scope="row">Galwedigaeth</th><td>ieithydd, <a href="/wiki/Llenor" title="Llenor">llenor</a>, sociolinguist <span class="penicon autoconfirmed-show"><span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q471550?uselang=cy#P106" title="Edit this on Wikidata"><img alt="Edit this on Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></span></td></tr><tr><th scope="row">Cyflogwr</th><td class="org"><div class="plainlist"><ul style=""><li style=""><a href="/wiki/Prifysgol_Bangor" title="Prifysgol Bangor">Prifysgol Bangor</a> <span class="penicon autoconfirmed-show"><span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q471550?uselang=cy#P108" title="Edit this on Wikidata"><img alt="Edit this on Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></span></li></ul></div></td></tr><tr><th scope="row">Gwobr/au</th><td>OBE, Cymrawd Cymdeithas Ddysgedig Cymru, Cymrawd yr Academi Brydeinig, Fellow of the Chartered Institute of Linguists, Honorary Fellow of Wolfson College <span class="penicon autoconfirmed-show"><span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q471550?uselang=cy#P166" title="Edit this on Wikidata"><img alt="Edit this on Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></span></td></tr><tr><th scope="row">Gwefan</th><td><a rel="nofollow" class="external free" href="http://www.davidcrystal.com">http://www.davidcrystal.com</a> <span class="penicon autoconfirmed-show"><span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q471550?uselang=cy#P856" title="Edit this on Wikidata"><img alt="Edit this on Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></span></td></tr></tbody></table> <p><a href="/wiki/Ieithyddiaeth" title="Ieithyddiaeth">Ieithydd</a>, <a href="/wiki/Academydd" class="mw-redirect" title="Academydd">academydd</a> ac <a href="/wiki/Awdur" title="Awdur">awdur</a> yw'r Athro <b>David Crystal, <a href="/wiki/OBE" class="mw-redirect" title="OBE">OBE</a></b> (ganwyd <a href="/wiki/6_Gorffennaf" title="6 Gorffennaf">6 Gorffennaf</a> <a href="/wiki/1941" title="1941">1941</a>). </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Bywyd_cynnar_ac_addysg">Bywyd cynnar ac addysg</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=David_Crystal&veaction=edit&section=1" title="Golygu'r adran: Bywyd cynnar ac addysg" class="mw-editsection-visualeditor"><span>golygu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=David_Crystal&action=edit&section=1" title="Edit section's source code: Bywyd cynnar ac addysg"><span>golygu cod</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Ganwyd Crystal yn <a href="/wiki/Lisburn" title="Lisburn">Lisburn</a>, Gogledd Iwerddon. Fe'i magwyd yn ddwyieithog yn y <a href="/wiki/Cymraeg" title="Cymraeg">Gymraeg</a> a'r <a href="/wiki/Saesneg" title="Saesneg">Saesneg</a> yng <a href="/wiki/Caergybi" title="Caergybi">Nghaergybi</a> ac yna <a href="/wiki/Lerpwl" title="Lerpwl">Lerpwl</a> lle mynychodd <a href="/w/index.php?title=Coleg_y_Santes_Fair,_Lerpwl&action=edit&redlink=1" class="new" title="Coleg y Santes Fair, Lerpwl (nid yw'r dudalen yn bodoli)">Goleg y Santes Fair</a> o 1951.<sup id="cite_ref-camb_1-0" class="reference"><a href="#cite_note-camb-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Astudiodd Saesneg yng <a href="/wiki/Coleg_y_Brifysgol,_Llundain" class="mw-redirect" title="Coleg y Brifysgol, Llundain">Ngholeg y Brifysgol</a>, <a href="/wiki/Llundain" title="Llundain">Llundain</a> rhwng 1959 a 1962.<sup id="cite_ref-camb_1-1" class="reference"><a href="#cite_note-camb-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Gyrfa">Gyrfa</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=David_Crystal&veaction=edit&section=2" title="Golygu'r adran: Gyrfa" class="mw-editsection-visualeditor"><span>golygu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=David_Crystal&action=edit&section=2" title="Edit section's source code: Gyrfa"><span>golygu cod</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Roedd yn ymchwilydd o dan <a href="/w/index.php?title=Randolph_Quirk&action=edit&redlink=1" class="new" title="Randolph Quirk (nid yw'r dudalen yn bodoli)">Randolph Quirk</a> rhwng 1962 a 1963, yn gweithio ar Arolwg o Ddefnydd y Saesneg.<sup id="cite_ref-camb_1-2" class="reference"><a href="#cite_note-camb-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-bangor_2-0" class="reference"><a href="#cite_note-bangor-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> Ers hynny mae wedi darlithio yn <a href="/wiki/Prifysgol_Cymru,_Bangor" class="mw-redirect" title="Prifysgol Cymru, Bangor">Ngholeg y Brifysgol</a>, <a href="/wiki/Bangor" title="Bangor">Bangor</a> ac rhwng <a href="/wiki/1965" title="1965">1965</a> a <a href="/wiki/1985" title="1985">1985</a> bu'n Athro Gwyddor Ieithyddiaeth ym <a href="/w/index.php?title=Prifysgol_Reading&action=edit&redlink=1" class="new" title="Prifysgol Reading (nid yw'r dudalen yn bodoli)">Mhrifysgol</a> <a href="/wiki/Reading" title="Reading">Reading</a>. Mae'n Athro Ieithyddiaeth er anrhydedd ym Mhrifysgol Bangor.<sup id="cite_ref-GuardProfile_3-0" class="reference"><a href="#cite_note-GuardProfile-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p>Ers ymddeol o waith academaidd llawn amser, bu'n gweithio fel awdur, golygydd ac ymgynghorydd ac mae'n cyfrannu i ddarllediadau radio a theledu. Mae ei gysylltiad gyda'r <a href="/wiki/BBC" title="BBC">BBC</a> yn amrywio o gyflwyno cyfres am faterion ieithyddol ar <a href="/wiki/BBC_Radio_4" title="BBC Radio 4">BBC Radio 4</a>, i bodlediadau ar wefan y <a href="/w/index.php?title=Gwasanaeth_y_Byd_BBC&action=edit&redlink=1" class="new" title="Gwasanaeth y Byd BBC (nid yw'r dudalen yn bodoli)">Gwasanaeth y Byd BBC</a> ar gyfer pobl sy'n dysgu Saesneg.<sup id="cite_ref-bio_4-0" class="reference"><a href="#cite_note-bio-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p><p>Yn 1995 derbynnodd Urdd yr Ymerodraeth Brydeinig am wasanaethau i'r iaith Saesneg. Mae'n awdur dros 60 o lyfrau ar yr iaith Saesneg ac ieithyddiaeth, mae hefyd wedi golygu a chyfrannu at nifer o <a href="/w/index.php?title=Cyfeirlyfr&action=edit&redlink=1" class="new" title="Cyfeirlyfr (nid yw'r dudalen yn bodoli)">gyfeirlyfrau</a>. Mae ef hefyd yn Gymrawd Cychwynnol o <a href="/wiki/Cymdeithas_Ddysgedig_Cymru" title="Cymdeithas Ddysgedig Cymru">Gymdeithas Ddysgedig Cymru</a>. </p><p>Mae'n byw yng Nghaergybi gyda'i wraig, sy'n gyn-therapydd lleferydd a nawr yn awdur plant. Mae ganddo bedwar o blant. Mae ei fab <a href="/w/index.php?title=Ben_Crystal&action=edit&redlink=1" class="new" title="Ben Crystal (nid yw'r dudalen yn bodoli)">Ben Crystal</a> hefyd yn awdur ac wedi cyd-ysgrifennu tri llyfr gyda'i dad.<sup id="cite_ref-indie_6-0" class="reference"><a href="#cite_note-indie-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p><p>Yn 2009 cyhoeddodd ei hunan-gofiant, <i>Just a Phrase I'm Going Through - My Life in Language</i> (Llundain ac Efrog Newydd, Routledge).<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Cyfeiriadau">Cyfeiriadau</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=David_Crystal&veaction=edit&section=3" title="Golygu'r adran: Cyfeiriadau" class="mw-editsection-visualeditor"><span>golygu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=David_Crystal&action=edit&section=3" title="Edit section's source code: Cyfeiriadau"><span>golygu cod</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="reflist" style="list-style-type: decimal;"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-camb-1"><span class="mw-cite-backlink">↑ <sup><a href="#cite_ref-camb_1-0">1.0</a></sup> <sup><a href="#cite_ref-camb_1-1">1.1</a></sup> <sup><a href="#cite_ref-camb_1-2">1.2</a></sup></span> <span class="reference-text"><cite class="citation web"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20060319110035/http://www.cambridge.org/uk/linguistics/crystal/about_the_author.htm">"All About...The Author"</a>. Cambridge University Press. Archifwyd o'r <a rel="nofollow" class="external text" href="http://www.cambridge.org/uk/linguistics/crystal/about_the_author.htm">gwreiddiol</a> ar 2006-03-19<span class="reference-accessdate">. Cyrchwyd <span class="nowrap">22 May</span> 2015</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=All+About...The+Author&rft.pub=Cambridge+University+Press&rft_id=http%3A%2F%2Fwww.cambridge.org%2Fuk%2Flinguistics%2Fcrystal%2Fabout_the_author.htm&rfr_id=info%3Asid%2Fcy.wikipedia.org%3ADavid+Crystal" class="Z3988"></span><style data-mw-deduplicate="TemplateStyles:r8312344">.mw-parser-output cite.citation{font-style:inherit}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .citation .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-maint{display:none;color:#33aa33;margin-left:0.3em}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}</style></span> </li> <li id="cite_note-bangor-2"><span class="mw-cite-backlink"><a href="#cite_ref-bangor_2-0">↑</a></span> <span class="reference-text"><cite class="citation web"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20121117040829/http://www.bangor.ac.uk/linguistics/about/davidcrystal.php.en">"Staff Profile of Professor David Crystal"</a>. Prifysgol Bangor University. Archifwyd o'r <a rel="nofollow" class="external text" href="http://www.bangor.ac.uk/linguistics/about/davidcrystal.php.en">gwreiddiol</a> ar 2012-11-17<span class="reference-accessdate">. Cyrchwyd <span class="nowrap">22 May</span> 2015</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Staff+Profile+of+Professor+David+Crystal&rft.pub=Prifysgol+Bangor+University&rft_id=http%3A%2F%2Fwww.bangor.ac.uk%2Flinguistics%2Fabout%2Fdavidcrystal.php.en&rfr_id=info%3Asid%2Fcy.wikipedia.org%3ADavid+Crystal" class="Z3988"></span><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r8312344" /></span> </li> <li id="cite_note-GuardProfile-3"><span class="mw-cite-backlink"><a href="#cite_ref-GuardProfile_3-0">↑</a></span> <span class="reference-text"><cite class="citation web"><a rel="nofollow" class="external text" href="https://www.theguardian.com/profile/davidcrystal">"David Crystal profile"</a>. <i><a href="/wiki/The_Guardian" title="The Guardian">The Guardian</a></i><span class="reference-accessdate">. Cyrchwyd <span class="nowrap">22 May</span> 2015</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=The+Guardian&rft.atitle=David+Crystal+profile&rft_id=http%3A%2F%2Fwww.theguardian.com%2Fprofile%2Fdavidcrystal&rfr_id=info%3Asid%2Fcy.wikipedia.org%3ADavid+Crystal" class="Z3988"></span><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r8312344" /></span> </li> <li id="cite_note-bio-4"><span class="mw-cite-backlink"><a href="#cite_ref-bio_4-0">↑</a></span> <span class="reference-text"><cite class="citation web"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20071026041231/http://www.crystalreference.com/David_Crystal/biography.htm">"Biography"</a>. Crystal Reference. 2005. Archifwyd o'r <a rel="nofollow" class="external text" href="http://www.crystalreference.com/David_Crystal/biography.htm">gwreiddiol</a> ar 2007-10-26<span class="reference-accessdate">. Cyrchwyd <span class="nowrap">2007-10-15</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Biography&rft.pub=Crystal+Reference&rft.date=2005&rft_id=http%3A%2F%2Fwww.crystalreference.com%2FDavid_Crystal%2Fbiography.htm&rfr_id=info%3Asid%2Fcy.wikipedia.org%3ADavid+Crystal" class="Z3988"></span><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r8312344" /></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><a href="#cite_ref-5">↑</a></span> <span class="reference-text"><cite id="CITEREFHazel_Bell1999" class="citation web">Hazel Bell (1 October 1999). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20070929125559/http://www.aidanbell.com/html/hkbell/DCrystal.htm">"David Crystal"</a>. Journal of Scholarly Publishing. Archifwyd o'r <a rel="nofollow" class="external text" href="http://www.aidanbell.com/html/hkbell/DCrystal.htm">gwreiddiol</a> ar 2007-09-29<span class="reference-accessdate">. Cyrchwyd <span class="nowrap">2007-10-15</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=David+Crystal&rft.pub=Journal+of+Scholarly+Publishing&rft.date=1999-10-01&rft.au=Hazel+Bell&rft_id=http%3A%2F%2Fwww.aidanbell.com%2Fhtml%2Fhkbell%2FDCrystal.htm&rfr_id=info%3Asid%2Fcy.wikipedia.org%3ADavid+Crystal" class="Z3988"></span><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r8312344" /></span> </li> <li id="cite_note-indie-6"><span class="mw-cite-backlink"><a href="#cite_ref-indie_6-0">↑</a></span> <span class="reference-text"><cite id="CITEREFLo_Dico2010" class="citation web">Lo Dico, Joy (14 March 2010). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20160305115540/http://www.independent.co.uk/arts-entertainment/books/features/watch-what-youre-saying-linguist-david-crystal-on-twitter-texting-and-our-native-tongue-1919271.html">"Watch what you're saying!: Linguist David Crystal on Twitter, texting and our native tongue"</a>. <i><a href="/wiki/The_Independent" title="The Independent">The Independent</a></i>. Archifwyd o'r <a rel="nofollow" class="external text" href="http://www.independent.co.uk/arts-entertainment/books/features/watch-what-youre-saying-linguist-david-crystal-on-twitter-texting-and-our-native-tongue-1919271.html">gwreiddiol</a> ar 2016-03-05<span class="reference-accessdate">. Cyrchwyd <span class="nowrap">21 May</span> 2015</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=The+Independent&rft.atitle=Watch+what+you%27re+saying%21%3A+Linguist+David+Crystal+on+Twitter%2C+texting+and+our+native+tongue&rft.date=2010-03-14&rft.aulast=Lo+Dico&rft.aufirst=Joy&rft_id=http%3A%2F%2Fwww.independent.co.uk%2Farts-entertainment%2Fbooks%2Ffeatures%2Fwatch-what-youre-saying-linguist-david-crystal-on-twitter-texting-and-our-native-tongue-1919271.html&rfr_id=info%3Asid%2Fcy.wikipedia.org%3ADavid+Crystal" class="Z3988"></span><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r8312344" /></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><a href="#cite_ref-7">↑</a></span> <span class="reference-text">op. cit.</span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="Dolenni_allanol">Dolenni allanol</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=David_Crystal&veaction=edit&section=4" title="Golygu'r adran: Dolenni allanol" class="mw-editsection-visualeditor"><span>golygu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=David_Crystal&action=edit&section=4" title="Edit section's source code: Dolenni allanol"><span>golygu cod</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><span style="font-size:0.95em; font-weight:bold; color: var(--color-progressive--active, #233566);">(Saesneg)</span> <a rel="nofollow" class="external text" href="http://www.davidcrystal.com/">Gwefan swyddogol</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20131229224434/http://www.davidcrystal.com/">Archifwyd</a> 2013-12-29 yn y <a href="/wiki/Peiriant_Wayback" title="Peiriant Wayback">Peiriant Wayback</a></li></ul> <div role="navigation" class="navbox" aria-labelledby="AwdurdodCategory:AC_with_14_elements" style="padding:3px"><table class="nowraplinks hlist navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th id="AwdurdodCategory:AC_with_14_elements" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Awdurdod" class="mw-redirect" title="Awdurdod">Awdurdod</a></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a rel="nofollow" class="external text" href="//www.worldcat.org/identities/lccn-n50-018712">WorldCat</a></li> <li><a href="/wiki/Virtual_International_Authority_File" class="mw-redirect" title="Virtual International Authority File">VIAF</a>: <span class="uid"><a rel="nofollow" class="external text" href="https://viaf.org/viaf/108407988">108407988</a></span></li> <li><a href="/wiki/Library_of_Congress_Control_Number" class="mw-redirect" title="Library of Congress Control Number">LCCN</a>: <span class="uid"><a rel="nofollow" class="external text" href="http://id.loc.gov/authorities/names/n50018712">n50018712</a></span></li> <li><a href="/wiki/International_Standard_Name_Identifier" class="mw-redirect" title="International Standard Name Identifier">ISNI</a>: <span class="uid"><a rel="nofollow" class="external text" href="http://isni.org/0000000122839497">0000 0001 2283 9497</a></span></li> <li><a href="/wiki/Integrated_Authority_File" class="mw-redirect" title="Integrated Authority File">GND</a>: <span class="uid"><a rel="nofollow" class="external text" href="http://d-nb.info/gnd/108484866">108484866</a></span></li> <li><a href="/wiki/LIBRIS" title="LIBRIS">SELIBR</a>: <span class="uid"><a rel="nofollow" class="external text" href="//libris.kb.se/auth/182560">182560</a></span></li> <li><a href="/wiki/Syst%C3%A8me_universitaire_de_documentation" title="Système universitaire de documentation">SUDOC</a>: <span class="uid"><a rel="nofollow" class="external text" href="http://www.idref.fr/028542223">028542223</a></span></li> <li><a href="/wiki/Biblioth%C3%A8que_nationale_de_France" title="Bibliothèque nationale de France">BNF</a>: <span class="uid"><a rel="nofollow" class="external text" href="http://catalogue.bnf.fr/ark:/12148/cb12035738w">cb12035738w</a> <a rel="nofollow" class="external text" href="http://data.bnf.fr/ark:/12148/cb12035738w">(data)</a></span></li> <li><a href="/wiki/BIBSYS" class="mw-redirect" title="BIBSYS">BIBSYS</a>: <span class="uid"><a rel="nofollow" class="external text" href="http://ask.bibsys.no/ask/action/result?cmd=&kilde=biblio&cql=bs.autid+%3D+90053665&feltselect=bs.autid">90053665</a></span></li> <li><a href="/wiki/National_Library_of_Australia" class="mw-redirect" title="National Library of Australia">NLA</a>: <span class="uid"><a rel="nofollow" class="external text" href="//nla.gov.au/anbd.aut-an35032495">35032495</a></span></li> <li><a href="/wiki/National_Diet_Library" class="mw-redirect" title="National Diet Library">NDL</a>: <span class="uid"><a rel="nofollow" class="external text" href="http://id.ndl.go.jp/auth/ndlna/00436972">00436972</a></span></li> <li><a href="/wiki/National_Library_of_the_Czech_Republic" class="mw-redirect" title="National Library of the Czech Republic">NKC</a>: <span class="uid"><a rel="nofollow" class="external text" href="http://aleph.nkp.cz/F/?func=find-c&local_base=aut&ccl_term=ica=jn19990001562&CON_LNG=ENG">jn19990001562</a></span></li> <li><span class="error">The SBN id BVEV000050 is not valid.</span></li> <li><a href="/wiki/Biblioteca_Nacional_de_Espa%C3%B1a" title="Biblioteca Nacional de España">BNE</a>: <span class="uid"><a rel="nofollow" class="external text" href="http://catalogo.bne.es/uhtbin/authoritybrowse.cgi?action=display&authority_id=XX819765">XX819765</a></span></li> <li><a href="/w/index.php?title=CiNii&action=edit&redlink=1" class="new" title="CiNii (nid yw'r dudalen yn bodoli)">CiNii</a>: <span class="uid"><a rel="nofollow" class="external text" href="http://ci.nii.ac.jp/author/DA00607856?l=en">DA00607856</a></span></li></ul> </div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?useformat=desktop&type=1x1&usesul3=0" alt="" width="1" height="1" style="border: none; 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