Meaning

noun narrow-leaved green herbage: grown as lawns; used as pasture for grazing animals; cut and dried as hay

verb shoot down, of birds

noun a police informer who implicates many people

originInherited from Middle English gras, from Old English græs, from Proto-West Germanic *gras, from Proto-Germanic *grasą (“grass”), from Proto-Indo-European *gʰreh₁- (“to grow”). Cognates Cognate with Scots gress (“grass”), North Frisian gaars, geers,…

Etymology from Wiktionary, CC BY-SA 3.0