Source : Webster's Revised Unabridged Dictionary (1913)

Fraise \Fraise\, n. [See {Froise}.]
   A large and thick pancake, with slices of bacon in it. [Obs.]
   --Johnson.

Fraise \Fraise\, n. [F. fraise, orig., a ruff, cf. F. frise
   frieze, E. frieze a coarse stuff.]
   1. (Fort.) A defense consisting of pointed stakes driven into
      the ramparts in a horizontal or inclined position.

   2. (Mech.) A fluted reamer for enlarging holes in stone; a
      small milling cutter.

Fraise \Fraise\, v. t. (Mil.)
   To protect, as a line of troops, against an onset of cavalry,
   by opposing bayonets raised obliquely forward. --Wilhelm.

Source : WordNet®

fraise
     n 1: a ruff for the neck worn in the 16th century
     2: sloping or horizontal rampart of pointed stakes