1) American indian 2) American-indian language 3) Amerind 4) Amerindian language 5) Caddo 6) Caddoan language 7) Indian Found on https://www.crosswordclues.com/clue/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
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. Found on http://www.encyclo.co.uk/visitor-contributions.php