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

• delta
• Delta
• deltaic
• delta ray
• delta rays
• delta rhythm
• delta rhythms
• deltas
• delta wave
• delta waves
• delta wing
• delta wings
• deltiologies
• deltiologist
• deltiologists
• deltiology
• deltoid
• deltoid muscle
• deltoid muscles
• deltoids
• delts
• delubrum
• delubrums
• deluce
• deludable