Source : Webster's Revised Unabridged Dictionary (1913)

Coup'e \Cou`p['e]"\ (k[=oo]`p[asl]"), n. [F., fr. coup['e], p.
   p. of couper to cut. See {Coppice}.]
   1. The front compartment of a French diligence; also, the
      front compartment (usually for three persons) of a car or
      carriage on British railways.

   2. A four-wheeled close carriage for two persons inside, with
      an outside seat for the driver; -- so called because
      giving the appearance of a larger carriage cut off.