Caddoan

Branch of the American Indian Macro-Siouan language family in the Midwestern USA. It was named after the Caddo, a confederacy of American Indian peoples who originally occupied the Red River area (Texas, Arkansas, Louisiana, and Oklahoma) of the Mississippi River Valley. Caddoan languages are also spoken by the Wichita, Pawnee, and Arikara, although both the Wichita and Pawnee dialects are close to extinction.