Ain't he all I've got in the wide world and you grutch me that?
c.1200, grucchen, "to murmur, complain," from Old French grouchier "to murmur, to grumble," of unknown origin, probably ultimately imitative. Meaning "to begrudge" is c.1400. Cf. gruccild (early 13c.) "woman who complains," from grutch + suffix of unknown origin. Related: Grutched; grutching. As a noun from c.1400.