DictionaryRoot: anuier
Old French
anuier
to weary, vex, trouble
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verb
annoy
uh-NOY/əˈnɔɪ/
To bother people or make them mildly angry.
Etymology
Old French anuier already meant to weary or vex someone, directly connecting it with causing irritation. The same French word family also gave English ennui, linking annoyance with weariness and boredom.