Noun
English: Kut'luch, type of hand weapon
German: Kut'luch, Handwaffe
Notes
According to Star Trek Encyclopedia this is a weapon used by an assassin. The weapon's serrated edge makes a very serious wound ("Sins of the Father" [TNG]).
TKW p. 103., picture on p. 102.
KGT p. 61. It has a serrated blade, so it is particularly lethal.