Adai
Spoken in:	United States
Region:	Louisiana
Language extinction:	19th century
Language family:	Language isolate
Language codes
ISO 639-1:	none
ISO 639-2:	–
ISO 639-3:	–
Pre-contact distribution of Adai.

Adai (also Adaizan, Adaizi, Adaise, Adahi, Adaes, Adees, Atayos) is the name of a people and language that was spoken in northwestern Louisiana and were a Southeastern culture of Native Americans. The name Adai is derived from the Caddo word hadai meaning 'brushwood'.

The Adai were among the first peoples in North America to experience European contact—and were profoundly affected. In 1530 Álvar Núñez Cabeza de Vaca writes of them using the name Atayos. The Adai subsequently moved away from their homeland. By 1820, there were only thirty persons remaining.

Language

The Adai language is a language isolate. Adai is very poorly documented (known only from a list of 275 words): classification is probably impossible. It was previously proposed that there was a connection between Adai and the Caddoan languages (due to proximity), but this now seems unlikely.

Adai is now extinct.

Bibliography

• Campbell, Lyle. (1997). American Indian languages: The historical linguistics of Native America. New York: Oxford University Press. ISBN 0-509446-509426-1.
• Mithun, Marianne. (1999). The languages of Native North America. Cambridge: Cambridge University Press. ISBN 0-521-23228-7 (hbk); ISBN 0-521-29875-X.

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