ar·hua·co \ärˈwä(ˌ)kō\noun oraro·a·co\ˌärōˈä-\; oraru·ac\ˈärüˌäk\ (pluralarhuacoorarhuacosoraroacooraroacosoraruacoraruacs) Usage: usually capitalized Etymology: Spanish, of American Indian origin 1.: a Chibchan people of northern Colombia 2.: a member of the Arhuaco people