From Middle English irken (“to tire, grow weary”), from Old Norse yrkja (“to work”), from Proto-Germanic *wurkijaną (“to work”), from Proto-Indo-European *werǵ- (“to work”). Cognate with Icelandic yrkja (“to compose”), Swedish yrka (“to urge, argue”), Old English wyrcan, wyrċean (“to work”). More at work.
irk (third-person singular simple present irks, present participle irking, simple past and past participle irked)
- (transitive) to irritate; annoy; bother