irk
aggravate (informal) annoy, be on one's back (slang) bug (informal) gall, get in one's hair (informal) get one's back up, get on one's nerves (informal) irritate, miff (informal) nark (Brit., Austral., & N.Z. slang) nettle, peeve (informal) piss one off (taboo slang) provoke, put one's back up, put one's nose out of joint (informal) put out (informal) rile, rub one up the wrong way (informal) ruffle, vex