irritate (v.)youdaoicibaDictYouDict[irritate 词源字典]
1530s, "stimulate to action, rouse, incite," from Latin irritatus, past participle of irritare "excite, provoke." An earlier verb form was irrite (mid-15c.), from Old French irriter. Meaning "annoy, make impatient" is from 1590s. Related: Irritated; irritating. [irritate etymology, irritate origin, 英语词源]