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

• cocoonings
• cocoons
• coco-palm
• cocopan
• cocopans
• cocoplum
• cocoplums
• cocos
• coco-tree
• cocotte
• cocottes
• co-counselling
• coco-wood
• coco-woods
• cocoyam
• cocoyams
• coctile
• coction
• coctions
• coculture
• cocultured
• cocultures
• coculturing
• cocuswood
• cocuswoods