adj. steel, steely, made of steel
adv. in a steel-like manner, as if made of steel
n. steel
v. to make steel; to become like steel

Pruzaan Zun ko Keizaal los hahdrim do dwiin-sil kendov.
The best Weapon in Skyrim is the mind of a steel-souled warrior.
(Word Wall for Zun, Disarm)

Orin pruzaan dwiin aal kreh ahrk kren, nuz Slen do vahzah muz los sindugahvon.
Even the best steel may bend and break, but the Flesh of a true man is unyielding.
(Word Wall for Slen, Ice Form)

Significant in ancient Nordic culture as the main material of arms and armor. Anything said to be steel-like imbues the strength of the arms and armor they crafted.

May share root with dwiirok ‘to carve’ relating to solid material.