grudge 
(grŭj)
(grŭj)tr.v. grudged, grudg·ing, grudg·es
1. To be reluctant to give or admit: even grudged the tuition money.
2. To resent for having; begrudge: grudged him his good ways with the children.
n.
A deep-seated feeling of resentment or rancor: bears a grudge about the accident.
[Middle English gruggen, grucchen, to grumble, complain, from Old French grouchier.]
grudger n.