gaucho (n.)youdaoicibaDictYouDict[gaucho 词源字典]
"a Spanish-descended native of the pampas," 1824, guacho, from Spanish gaucho, probably from a native South American language. Compare Araucanian (native language spoken in part of Chile) cauchu "wanderer." Noted for their independence and skill in horsemanship and with the lasso.[gaucho etymology, gaucho origin, 英语词源]