cultured (adj.)youdaoicibaDictYouDict[cultured 词源字典]
1743 in the literal sense of "cultivated," of land, etc., past participle adjective from culture; meaning "developed under controlled natural conditions" is from 1906, originally of pearls. Meaning "improved by exposure to intellectual culture" is from 1777.[cultured etymology, cultured origin, 英语词源]