exasperate (v.)youdaoicibaDictYouDict[exasperate 词源字典]
1530s, "irritate, provoke to anger," from Latin exasperatus, past participle of exasperare "make rough, roughen, irritate, provoke," from ex- "thoroughly" (see ex-) + asper "rough" (see asperity). Related: Exasperated; exasperating.[exasperate etymology, exasperate origin, 英语词源]