gaucho

‖n., pl. Gauchos /plu> [ Sp. ] One of the native inhabitants of the South American pampas, of Spanish-American descent. They live mostly by rearing cattle. Hence, a South American cowboy, especially on the pampas. [ 1913 Webster ]

2. A member of an Indian population, somewhat affected by Spanish blood, in the archipelagoes off the Chilean coast. [ Webster 1913 Suppl. ]