In Norse mythology, what is an undead corpse called?

In Norse mythology, an undead corpse is called a draugr.

A draugr is a reanimated dead person from Norse mythology and later Scandinavian folklore. Unlike the honored einherjar in Valhalla, a draugr is generally a hostile undead being that remains tied to its burial place, treasure, or former home.

Old Norse and Icelandic sagas describe draugar as physically powerful and capable of harming the living. They may guard burial mounds, attack intruders, or torment people connected with their former lives. Some stories also attribute supernatural abilities such as changing size or shape and causing illness.

The draugr is not simply another name for every Norse dead person. The term refers to an undead revenant, while the einherjar are warriors chosen for Odin’s hall and the dead in Hel belong to a different afterlife category. Modern fantasy often portrays draugar as generic zombies, but saga descriptions give them a distinctive connection to burial mounds and accumulated wealth.