Source : Webster's Revised Unabridged Dictionary (1913)

Brut \Brut\, v. i. [F. brouter, OF. brouster. See {Browse}, n.]
   To browse. [Obs.] --Evelyn.

Brut \Brut\, n. (Zo["o]l.)
   See {Birt}.

Source : WordNet®

brut
     adj : (of champagne) extremely dry