grouse

Origin

Attested in the 1530s, as grows ("moorhen"), a plural used collectively. The origin of the noun is unknown; the following derivations have been suggested: * From Old French grue (“crane”) (modern French grue) or Medieval Latin gruta (“crane”), both from Latin grūs (“crane”). * Borrowed from Celtic or a different Medieval Latin word. * Imitative of the bird’s call. The verb is derived from the noun.