The Collaborative International Dictionary
Woodroof
Woodruff \Wood"ruff`\, Woodroof \Wood"roof`\, n. [AS. wudurofe. See Wood, n., and cf. Ruff a plaited collar.] (Bot.) A little European herb ( Asperula odorata) having a pleasant taste. It is sometimes used for flavoring wine. See Illust. of Whorl.
Wiktionary
woodroof
n. A small, sweet-smelling herb, ''Galium odoratum'', once used for flavouring wine