extermination (n.)youdaoicibaDictYouDict[extermination 词源字典]
mid-15c., "repulsion;" 1540s, "utter destruction, eradication," from Middle French extermination and directly from Latin exterminationem (nominative exterminatio) "ejection, banishment," noun of action from past participle stem of exterminare (see exterminate).[extermination etymology, extermination origin, 英语词源]