acrimony

Etymology

From Middle French acrimonie, from Latin ācrimōnia (“sharpness, pungency”).

noun

1. A sharp and bitter hatred.
   Her acrimony for her neighbors manifests itself with shouting and stomping.
   Liverpool manager Jurgen Klopp was prepared to play a game of patience to land Virgil van Dijk after his initial move to sign the Netherlands captain from Southampton in the summer of 2017 ended in acrimony. November 3, 2018, Phil McNulty, “Arsenal 1 - 1 Liverpool”, in BBC Sport
   In her resentful mood, these expressions had been remembered with acrimony and disdain; …. 1826, Mary Shelley, chapter 12, in The Last Man