Source : Webster's Revised Unabridged Dictionary (1913)

Brach \Brach\, n. [OE. brache a kind of scenting hound or
   setting dog, OF. brache, ? braque, fr. OHG. braccho, G.
   bracke; possibly akin to E. fragrant, fr. L. fragrare to
   smell.]
   A bitch of the hound kind. --Shak.