Translations for Back Stab or Face Stab

I am trying to find the official definition of these words if possible.
I know Face is Luft but I cant seem to find much for Back or Stab

I did find possible answers but they are not in the 5th edition dictionary or in the translator so I am not sure if they have been removed.

Possible translations:

Back = Rigir

Stab = Kinz

the only thing I could find in the latest dictionary and the website would be

Nos which means to strike and
Nin which means to sting to strike to pierce.

Nin seems like it would be the best maybe for To Stab since it means to pierce but im not 100% sure on it

So would Face stab then be Luftnin and backstab would be Rigirnin?

Category: General