noun, plural Co·man·ches ( especially collectively ) Co·man·che for 1.
1.
a member of a Shoshonean tribe, the only tribe of the group living entirely on the Plains, formerly ranging from Wyoming to Texas, now in Oklahoma.
2.
the dialect of Shoshone spoken by the Comanche.
Origin: 1800–10, Americanism; < American Spanish < Southern Paiutekɨmmanci-, as in kɨmmanciŋwṫ strangers, Shoshones; or < a related word in another Numic language
1819, from Sp., from a Shoshonean language, cf. Ute kimánci "enemy, foreigner." Comanchero was a 19c. name given to Hispanic and American traders who dealt with the Comanches