instill (v.)youdaoicibaDictYouDict[instill 词源字典]
also instil, early 15c., "to introduce (liquid, feelings, etc.) little by little," from Latin instillare "put in by drops, to drop, trickle," from in- "in" (see in- (2)) + stilla "a drop" (see distill). Related: Instilled; instilling.[instill etymology, instill origin, 英语词源]