The draugr or draug (Old Norse: draugr, plural draugar; modern Icelandic: draugur, Faroese: dreygur and Danish, Swedish, and Norwegian: draug) is an undead creature from the Scandinavian saga literature and folktale. Commentators extend the term draugr to the undead in medieval literature, even if it is never explicitly referred to as that in the text, and designated them rather as a haugbúi ("barrow-dweller") or an aptrganga, literally "again-walker" (Icelandic: afturganga).