Siouan languages
Siouan or Siouan–Catawban is a language family of North America that is located primarily in the Great Plains, Ohio and Mississippi valleys and southeastern North America with a few other languages in the east.
Kiowa language
Kiowa or Cáuijògà/Cáuijò:gyà (″language of the Cáuigù (Kiowa)″) is a Tanoan language spoken by the Kiowa Tribe of Oklahoma in primarily Caddo, Kiowa, and Comanche counties. The Kiowa tribal center is located in Carnegie. Like most North American languages, Kiowa is an endangered language.