Sourced record CRE-016 · Old Norse mythology

Fenrir

The Fenris-wolf in Anderson’s Younger Edda

The rapidly growing wolf whom the gods bind with the impossible ribbon Gleipnir, at the cost of Tyr’s hand, until he breaks free at Ragnarök and kills Odin.

Mythic cosmosMonster wolfBound adversary
Primary sourceProse Edda, Gylfaginning

Quick answer

Fenrir is the monster wolf born to Loki and Angrboda in the Prose Edda. After he breaks two fetters, the gods deceive him into testing Gleipnir. He bites off Tyr’s hand when the ribbon holds, remains bound until Ragnarök, then escapes, swallows Odin, and is killed by Vidar.

Quick facts

TraditionOld Norse mythology
BookProse Edda, Gylfaginning 34–35 and the Ragnarök account
Source realmJotunheim, Asgard, Lyngve, and Vigrid
Creature typeMonster wolf
ParentsLoki and the giantess Angrboda [1]
SiblingsJormungand and Hel
Final fetterGleipnir, a soft ribbon made from six impossible things
FateKills Odin at Ragnarök and is then killed by Odin’s son Vidar

What the source book says

The gods bring Loki and Angrboda’s three children from Jotunheim. They keep Fenrir among themselves, but only Tyr dares to feed him. As the wolf grows and prophecies identify him as a future danger, the gods test him with Lading and then Drome. Fenrir breaks both fetters through his strength.[1]

Dwarfs make Gleipnir from the sound of a cat’s footfall, a woman’s beard, a mountain’s roots, a bear’s sinews, a fish’s breath, and a bird’s spittle. Suspicious of the slender band, Fenrir demands a god’s hand as a pledge. Tyr places his right hand in the wolf’s mouth and loses it when Gleipnir holds. The gods gag Fenrir with a sword and bind him until Ragnarök, when he breaks free, swallows Odin, and is killed by Vidar.[1]

Source boundary: This page follows Rasmus B. Anderson’s English version, which uses spellings such as “Fenris-wolf,” “Loke,” “Lading,” and “Drome.” Modernised names appear in headings for findability, but the record does not combine the account with later novels, games, or invented wolf species.

Description and abilities

The source identifies Fenrir as a wolf and emphasises growth, strength, jaws, and voice rather than colour or exact measurements. He snaps two great restraints, senses deceit in Gleipnir, bites through Tyr’s hand, and howls so fiercely that his saliva forms the river Von. At Ragnarök his lower jaw reaches the earth and his upper jaw heaven, while fire flashes from his eyes and nostrils.[1]

  • Grows rapidly while fostered by the gods
  • Breaks Lading and Drome
  • Cannot break the magical ribbon Gleipnir
  • Is gagged with a sword after taking Tyr’s hand
  • Escapes at Ragnarök and kills Odin

Source realm: Lyngve and Vigrid

The binding takes place on the rocky island Lyngve in Lake Amsvartner. This isolated site holds Fenrir apart from the gods’ ordinary halls until the world’s bonds break. He then advances to Vigrid, the field where the powers of Ragnarök meet.

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Major themes

Fear creates the betrayal

The gods act because prophecy and Fenrir’s growth frighten them. Their solution depends on a false promise that they will release him after the test.

Tyr’s costly pledge

Tyr is the only god willing both to feed Fenrir and to place a hand in his mouth. The binding succeeds because he accepts the certain personal cost.

Fate delayed, not prevented

Gleipnir confines Fenrir for an age but does not erase the foretold encounter. At Ragnarök both Odin’s death and Vidar’s vengeance arrive.

Book and reference

  1. 1
    The Younger Edda: Also Called Snorre’s Edda, or the Prose Edda

    English version, introduction, notes, vocabulary, and index by Rasmus B. Anderson. Scott, Foresman & Co., Chicago, 1901. See The Fooling of Gylfe, chapters 34–35 and 51.

    Project Gutenberg edition ↗