indoctrinate (v.)youdaoicibaDictYouDict[indoctrinate 词源字典]
1620s, "to teach," from in- (2) "in" + Latin doctrina "teaching" (see doctrine). Meaning "to imbue with an idea or opinion" first recorded 1832. Related: Indoctrinated; indoctrinating. The earlier verb was indoctrine (c. 1500).[indoctrinate etymology, indoctrinate origin, 英语词源]