Adai people

Adai (also Adaizan, Adaizi, Adaise, Adahi, Adaes, Adees, Atayos) is the name of a Native American people of northwestern Louisiana with a Southeastern culture. 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. Their language is unclassified due to a lack of attestation.