v. to fight, battle, struggle, esp. to the death
n. fight, battle, struggle

Krif krin. Pruzah!
(You) fight couragously [sic]. Good!
(Mirmulnir, 0005637F)

Zin krif horvut se suleyk.
Honor (is) fighting the lure of power.
(Paarthurnax, 0003C574)

Kendov krif ok kosil Vokul, nuz jun Gaar niin nau ok hokoron.
The warrior fights his inner evils, but the king unleashes them on his enemies.
(Word wall for Gaar, Cyclone)

To fight against, face in battle, esp. to the death.

Likely shares root with krii ‘to kill’.

The phrase krif voth ahkrin is used to mean ‘fight bravely’ or ‘bravely fought’.