Source : Webster's Revised Unabridged Dictionary (1913)

Vergeboard \Verge"board`\, n. [Verge + board. Cf. {Bargeboard}.]
   (Arch.)
   The ornament of woodwork upon the gable of a house, used
   extensively in the 15th century. It was generally suspended
   from the edge of the projecting roof (see {Verge}, n., 4),
   and in position parallel to the gable wall. Called also
   bargeboard.