grudge

Short definition from Wiktionary

Noun

1. 1
   Deep-seated and/or long-term animosity or ill will about something or someone, especially due to perceived mistreatment.

Verb

1. 1
   To be unwilling to give or allow (someone something).
2. 2
   To grumble, complain; to be dissatisfied.
3. 3
   To hold or harbour with malicious disposition or purpose; to cherish enviously.