grudge (v.) Look up grudge at Dictionary.com
mid-15c., "to murmur, complain," variant of grutch. Meaning "to begrudge, envy, wish to deprive of" is c. 1500. Related: Grudged; grudges; grudging; grudgingly.
grudge (n.) Look up grudge at Dictionary.com
"ill will excited by some special cause," late 15c., from grudge (v.).