I. ˈka(ˌ)dō noun
( plural caddo or caddos )
Usage: usually capitalized
Etymology: probably modification of Caddo Kädohädächo (name of a leading tribe in the confederacy), literally, real chiefs
1. : a group of Indian peoples of Arkansas, No. and So. Dakota, Kansas, Nebraska, Louisiana, Oklahoma, and Texas, comprising the Hasinai, Kadohadacho, and Natchitoches confederacies and the Adai, Arikara, Eyeish, Kichai, Pawnee, Wichita, and other tribes
2. : a member of the Caddo group of peoples
II. adjective
or cad·do·an ˈkadəwən
Usage: usually capitalized
: of or relating to an ancient culture of the lower Mississippi valley characterized by pottery having decoration engraved on the polished surface after firing