adj. undead
adv. undeathly, in an undead manner
n. undeath
v. to make or become undead

Diil qoth zaam!
Undead tomb slave!
(Soul Cairn Summon Shout)

Word of Power, refers to something that is non-living. Does not refer to immortality.

Shares root with other death-related words such as dilon ‘dead’ and dilos ‘deadly’.