naturalize (v.)youdaoicibaDictYouDict[naturalize 词源字典]
"admit (an alien) to rights of a citizen," 1550s (implied in naturalized), from natural (adj.) in its etymological sense of "by birth" + -ize; in some instances from Middle French naturaliser, from natural. Of things, from 1620s; of plants or animals, from 1796. Related: Naturalizing.[naturalize etymology, naturalize origin, 英语词源]