Normally the transition frae a deid tae a extinct leid occurs whan a leid drees leid daith while bein directly replaced bi a different ane. For insample, Native American leids wur replaced bi Inglis, French, Portuguese, or Spaingie as a result o colonization. The Coptic leid, replaced bi Arabic in its native Egyp, wis ance thocht tae be extinct.
Bi contrast tae an extinct language that disnae hae ony speakers ony mair, a deid leid mey remain in uise for scienteefic, legal, or ecclesiastical functions. Old Church Slavonic, Avestan, Coptic, Biblical Hebrew, Ge'ez, Latin, an Sanskrit ar amang the mony dead leids uised as sacred leids.
Alternatively, a leid is said tae be extinct gif, thoch it is kent for haein been spoken bi fowk in the past, modren scholarship cannae reconstruct it tae the pynt that it is possible tae write in it or owerset intae it wi confidence (say, a semple dialogue or a short tale written in a modren leid); whaurby a leid is referred tae as dead, but no extinct, gif fowk ken eneuch o it at present tae allou sic routine uise, thoch it haes nae modren speakers. Bi thir definitions Proto-Indo-European (anerly conjectural reconstructions o lexicon an grammar o it exist) is an extinct leid, an Clessical Laitin an Auld Tupi are deid, but nae extinct leids.
Hebrew is an insample o a naur extinct spoken leid (bi the first definition 'boon) that became a lingua franca an a liturgical leid that haes been revived tae acome a livin spoken leid. Thare ither attempts at leid revival. For insample, young schuil bairns uise Sanskrit in revived leid in Mathoor veelage (Indie). In general, the success o thir attemps haes been subject tae debate, as it isnae clear thay will ever acome the common native leid o a commonty o speakers.
- "Ethnologue". Ethnologue. Retrieved 2012-03-22.
- "Study by language researcher, David Graddol". MSNBC. 2004-02-26. Retrieved 2012-03-22.
- by Ian on Friday, January 16, 2009 61 comments (2009-01-16). "Research by Southwest University for Nationalities College of Liberal Arts". Chinasmack.com. Retrieved 2012-03-22.CS1 maint: multiple names: authors leet (link)