Sabre fish

from The Collaborative International Dictionary of English v.0.48

Saber \Sa"ber\, Sabre \Sa"bre\, n. [F. sabre, G. s[aum]bel; of
   uncertain origin; cf. Hung. sz['a]blya, Pol. szabla, Russ.
   sabla, and L. Gr. zabo`s crooked, curved.]
   A sword with a broad and heavy blade, thick at the back, and
   usually more or less curved like a scimiter; a cavalry sword.
   [1913 Webster]

   {Saber fish}, or {Sabre fish} (Zool.), the cutlass fish.
      [1913 Webster] Saber