retaliation (n.)youdaoicibaDictYouDict[retaliation 词源字典]
1580s, noun of action from Late Latin retaliare "pay back in kind," from re- "back" (see re-) + Latin talio "exaction of payment in kind," from or influenced by talis "suchlike" (see that). Originally used both in good and evil senses.[retaliation etymology, retaliation origin, 英语词源]