The Collaborative International Dictionary of English v.0.48:

Chape \Chape\, n. [F., a churchman's cope, a cover, a chape, fr.
   L. cappa. See Cap.]
   1. The piece by which an object is attached to something, as
      the frog of a scabbard or the metal loop at the back of a
      buckle by which it is fastened to a strap.
      [1913 Webster]

   2. The transverse guard of a sword or dagger.
      [1913 Webster]

   3. The metal plate or tip which protects the end of a
      scabbard, belt, etc. --Knight.
      [1913 Webster]