Source : Webster's Revised Unabridged Dictionary (1913)

Bordel \Bor"del\, Bordello \Bor*del"lo\, n. [F. bordel, orig. a
   little hut, OF. borde hut, cabin, of German origin, and akin
   to E. board,n.See. {Board}, n.]
   A brothel; a bawdyhouse; a house devoted to prostitution.
   [Obs.] --B. Jonson.