revenant

One that returns after a lengthy absence.

One who returns after death.

One who returns; especially, one who returns after a long period of absence or after death; a ghost; a specter; specifically, in mod. spiritualism, an apparition; a materialization.

In mathematics, a form which continually returns as leading coefficient of irreducible covariants.

Someone who returns from a long absence.

A person or thing reborn.

A supernatural being that returns from the dead; a zombie or ghost.

Used as an adjective.

coming back

of or relating to or typical of a revenant