alleviate (v.)youdaoicibaDictYouDict[alleviate 词源字典]
late 15c., from Middle French allevier or directly from Late Latin alleviatus, past participle of alleviare "to lighten," from Latin ad- "to" (see ad-) + levis "light" in weight (see lever). Related: Alleviated; alleviating.[alleviate etymology, alleviate origin, 英语词源]