Language: The Bidai Indians were a small tribe of southeastern Texas. They were allies of the Caddo tribes,
but may have been more closely related to the Akokisa, an
Two other small tribes of Southeast Texas, the Patati
and the Deadose, are often
considered Bidai subgroups.
The Bidais no longer exist as a separate tribe. They were devastated by an epidemic in the late 1700's, and most of the survivors were eventually
absorbed into the Atakapa and Caddo nations. There are few remaining records of the Bidai language (only nine vocabulary words.)
The language is thought to have been related to Atakapa.
Their own name for themselves was Quasmigdo; Bidai was
a Caddoan name for their tribe, meaning "brushwood" (in reference to their brush houses.) Alternate spellings of the name
Bidai have included Biday, Bedae, Beadeye, Bedias, Bidais, and Baedies.