Definitions for wraithreɪθ
Random House Webster's College Dictionary
an apparition of a living person supposed to portend his or her death.
a visible spirit.
Origin of wraith:
1505–15; originally Scots
ghost, shade, spook, wraith, specter, spectre(noun)
a mental representation of some haunting experience
"he looked like he had seen a ghost"; "it aroused specters from his past"
A ghost or specter, especially seen just after a person's death.
an apparition of a person in his exact likeness, seen before death, or a little after; hence, an apparition; a specter; a vision; an unreal image
sometimes, improperly, a spirit thought to preside over the waters; -- called also water wraith