begrudgingly Definition

1. To do, give or allow something unwillingly or with regret.

Thesaurus: stint, pinch, be stingy with, skimp, hold back; Antonym: lavish.
2. To envy or resent them for it.

Example: Don't begrudge him his success
Thesaurus: resent, envy, be jealous of, covet, mind, grudge.
Form: begrudge someone something (usually)