rancour or US rancor /rangˈkər/

1. Harboured bitterness of mind, speech, etc
2. Deep-seated enmity
3. Spite
4. Virulence
5. Sourness (Shakespeare)

ranˈcorous adjective

ranˈcorously adverb

• ballpoint pens
• ballpoints
• ball-proof
• ball rolling
• ballroom
• ballroom dancing
• ballrooms
• balls
• balls-aching
• ballsed-up
• ballsier
• ballsiest
• ballsiness
• ballsinesses
• balls-out
• balls up
• balls-up
• ballsy
• ball up
• ballup
• ball valve
• ball valves
• bally
• ballyhoo
• ballyhooed