Wraith

Wraiths have old Norse origins. Their name is derived from word “vörthr” which means “guardian” or “watcher.” They appear as living people, foretelling that person’s death.

Citations:

Maberry, Jonathan. Vampire Universe: The Dark World of Supernatural Beings That Haunt Us, Hunt Us, and Hunger for Us. United States, Kensington Publishing Corporation, 2006