Dagger

A dagger is a small hand-held blade weapon.

Every Tamarian encountered by the crew of the USS Enterprise (NCC-1701-D) in 2368 owned a dagger, including their captain Dathon. After the death of the Tamarian captain the Tamarian officers performed a mourning ritual using their daggers. 

In 2369 Vash secured a bronze and gold dagger, about twenty five centimeters, in a storage locker of the assay office aboard Deep Space 9. 

Gul Madred owned a dagger with a jevonite handle. 

The same year, the Bajoran Sirah apprentice Hovath used a Bajoran dagger when he tried to kill Miles O'Brien because of his jealousy. O'Brien and Julian Bashir were able to disarm him. 

Kainon used a small dagger when he stabbed Aamin Marritza in the back on the promenade. 

$𝜇$s of the mirror universe used a dagger impaling the Earth as the symbol of their empire. $𝜇$ officer $𝜇$ also had a dagger as standard accessory for over a hundred years.