exemption (n.)youdaoicibaDictYouDict[exemption 词源字典]
c. 1400, from Old French exemption, exencion or directly from Latin exemptionem (nominative exemptio) "a taking out, removing," noun of action from past participle stem of eximere "take out, take away, remove" (see exempt (adj.)).[exemption etymology, exemption origin, 英语词源]