Irritate

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mid 16th century (in the sense ‘excite, provoke’): from Latin irritat- ‘irritated’, from the verb irritare .

wiktionary

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From Latin irrītātus, past participle of irrītō(“excite, irritate, incite, stimulate”).

etymonline

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irritate (v.)

1530s, "stimulate to action, rouse, incite," from Latin irritatus, past participle of irritare "excite, provoke, annoy;" according to de Vaan, probably a verb from Proto-Italic *rito- "stirred," from the same PIE root that produced English run (v.). Meaning "annoy, make impatient" in English is from 1590s. The earlier verb in English was irrite (mid-15c.), from Old French irriter. Related: Irritated; irritating.