Source : Webster's Revised Unabridged Dictionary (1913)

Messuage \Mes"suage\ (?; 48), n. [Cf. OF. mesuage, masnage, LL.
   messuagium, mansionaticum, fr. L. mansio, -onis, a staying,
   remaining, dwelling, fr. manere, mansum, to stay, remain, E.
   mansion, manse.] (Law)
   A dwelling house, with the adjacent buildings and curtilage,
   and the adjoining lands appropriated to the use of the
   household. --Cowell. Bouvier.

         They wedded her to sixty thousand pounds, To lands in
         Kent, and messuages in York.             --Tennyson.

Source : WordNet®

messuage
     n : (law) a dwelling house and its adjacent buildings and the
         adjacent land used by the household