chape

/CH EY1 P/
noun
  1. 1

    The piece by which an object is attached to something, such as the frog of a scabbard or the metal loop at the back of a buckle by which it is fastened to a strap.

  2. 2

    The transverse guard of a sword or dagger.

  3. 3

    The lower metallic cap of a sword's scabbard.

Source: https://en.wiktionary.org/wiki/chape