Duath and Athelas

Dúath and Athelas are Kazita's matched pair of black-bladed daggers, which she dual wields.

Character Knowledge
Kazita has these daggers. The players (probably) don't know they have names, except possibly Fafnir.

Player Knowledge
The names Dúath and Athelas are references to the names of plants in an ancient, long-forgotten language. Dúath, or Nightshade, is used to make poison; Athelas, or Kingsfoil, is a healing herb.

Behind the Scenes
It's Tolkein elvish.