rankle
verb
[ ˈraŋk(ə)l ]
• (of a comment or fact) cause continuing annoyance or resentment.
• "the casual manner of his dismissal still rankles"
• (of a wound or sore) continue to be painful; fester.
• "the wound is but skinned over and rankles still at the bottom"
Origin:
Middle English: from Old French rancler, from rancle, draoncle ‘festering sore’, from an alteration of medieval Latin dracunculus, diminutive of draco ‘serpent’.