Acrimony is bitterness, or ill will. Acrimony is a spiteful word. It sounds bitter, like acid. Acrimony comes from the Latin word acrimonia, meaning basically "sharpness." Although it sounds like matrimony, the only thing the words have in common is the suffix from monium which means "state, condition." So it's the state of being acrid, or bitter. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.