Meaning

noun a resentment strong enough to justify retaliation

verb bear a grudge; harbor ill feelings

verb accept or admit unwillingly

originA variant of grutch (mid 15th-century, younger than begrudge), from Middle English grucchen (“to murmur, complain, feel envy, begrudge”), from Old French grouchier, groucier (“to murmur, grumble”), of Germanic origin, probably ultimately imitative. Akin to Middle High German grogezen (“to howl, wail”), German grocken (“to croak”). Compare also Old Norse krytja (“to murmur”), Old High German…

Etymology from Wiktionary, CC BY-SA 3.0