acrimony

Etymology

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

Noun

acrimony (countable and uncountable, plural acrimonies)

1. A sharp and bitter hatred.

   Her acrimony for her neighbors manifests itself with shouting and stomping.

   • 1826, Mary Shelley, chapter 12, in The Last Man:

     In her resentful mood, these expressions had been remembered with acrimony and disdain; [...].