What is the meaning of Grudge?

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

To be unwilling to give or allow (someone something).

To grumble, complain; to be dissatisfied.

To hold or harbour with malicious disposition or purpose; to cherish enviously.

grudge in An American Dictionary of the English Language, by Noah Webster, 1828.

Source: wiktionary.org