envenom (v.)youdaoicibaDictYouDict[envenom 词源字典]
c. 1300, envenymen, from Old French envenimer (12c.) "to poison, taint;" from en- (see en- (1)) + venim (see venom). Figurative use is from late 14c. Related: Envenomed; envenoming.[envenom etymology, envenom origin, 英语词源]