Caddoan

A family of North American Indian languages spoken in the upper Missouri Valley in North Dakota, in the Platto Valley in Nebraska, in southwestern Arkansas, and in neighboring parts of Oklahoma, Texas and Louisiana.

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...
Found on http://www.encyclo.co.uk/local/20688
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