Definition: Ragnarok was the end of the world in Norse mythology. It meant the end of most of the Norse gods and goddesses. Beginning with a three-year winter, Ragnarok ended with a battle among the gods, giants, and the dead heroes from Valhalla. Two humans hiding in the world tree Yggdrasil, came down after the battle to repopulate the world.
Alternate Spellings: Ragnarök, Ragnarökk