Hoarfrost

 is a unique Ancient Nordic Pickaxe found in.

Acquisition
It can either be pickpocketed off Ralis Sedarys, Southeast of Raven Rock, looted off of him after killing, or taken from his inventory if made a follower.

Enchantment
Targets take 15 points of frost damage to Health and Stamina, and have a small chance of being frozen solid. The weapon cannot be disenchanted.