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

• magnetrons
• magnets
• magnet school
• magnifiable
• magnific
• magnifical
• magnifically
• Magnificat
• magnification
• magnifications
• magnificence
• magnificences
• magnificent
• magnificently
• magnifico
• magnificoes
• magnified
• magnifier
• millionairess
• millionairesses
• millionary
• millionfold
• millions
• millionth
• millionths