grudge
nounmasculine/ˈʁɐ̃kuʁ/medium
ran·cor
Definition
A persistent feeling of ill will or resentment resulting from a past insult or injury.
She holds a grudge against him for not inviting her to the party.
It's hard to let go of a grudge when you've been wronged.
Etymology
Do latim 'rancor', que significa 'amargura'