Acrimony (noun)

Bitterness or sharpness in speech or behavior.

Origin:

From the latin word "acrimonia" which means sharpness, harshness, or bitterness.

Examples:

1. The meeting ended in acrimony as both sides refused to compromise.
2. The divorce proceedings were filled with acrimony and hostility.
3. The debate was marked by acrimony and personal attacks.
4. The acrimony between the two politicians was well known.
5. The discussion ended in acrimony, with both sides unwilling to listen to the other's viewpoint.