There is a moment in this story when everyone present knows exactly what is about to happen, including the wolf, and it happens anyway. That is what makes it the bleakest good story in Norse myth. Nobody is deceived. A bargain is struck in full view, both sides intend to break it, and the god who pays does so with his eyes open.
Three children in Jötunheim
Loki fathered three children on the giantess Angrboða out east in giant country: a serpent, a wolf, and a girl half living flesh and half corpse. Word reached Asgard of what they were and of what the prophecies said they would do, and Odin had them fetched.
He dealt with them in three different ways, and the differences matter. The serpent he threw into the sea that rings the inhabited world, where Jörmungandr grew until it circled the land and could take its own tail in its mouth. Hel he sent down below and gave authority over nine worlds, with the job of housing everyone who dies of sickness or old age. The wolf they kept at home, among themselves, and raised.
That third decision is the one that needs explaining, and the sources do not explain it. What they record is the consequence: Fenrir grew up in the middle of the gods' own settlement, and grew fast, and only one of them was willing to go near him with food. Týr fed him. That is the whole of their relationship as the texts give it, and the whole of what the ending needs.
Two fetters, honestly broken
When the prophecies about how he would end them became too loud to ignore, the gods decided to bind him. They also decided, and this is stated plainly, that they would not kill him where they stood, because they would not defile a sanctuary with blood, however deserved. They chose to be scrupulous about the location of a murder while planning the murder. Norse myth is full of this kind of precision.
The first fetter was called Leyding, and it was made strong. They brought it to the wolf and framed it as a test: here is a chain, see whether your strength is equal to it. Fenrir looked at it, judged it, and let them put it on. He kicked once and it came apart.
The second was Drómi, half again as strong as the first. This time the gods added flattery — that a wolf who snapped a thing like that would be famous beyond argument. Fenrir did the arithmetic that heroes do: the iron was formidable, but so was his own growth since Leyding, and nothing worth having is got without risking something. He let them fasten it, shook himself, drove his legs against the ground and burst it so hard the pieces flew. Both fetter names entered the language as expressions for getting out of trouble the hard way.
A ribbon made of six things that do not exist
Odin sent Skírnir, Freyr's errand-runner, down to the dwarfs, and they made Gleipnir. It came back looking like a silk ribbon and weighing nothing.
Its materials are given as a list, and the list is the point. Six things went into it, and each one is a thing that does not exist:
- what a cat's paw sounds like crossing a floor
- whiskers on a woman's chin
- whatever it is that a mountain stands on
- the tendon inside a bear's temper
- air out of a fish's lungs
- what a bird spits
Every one of the six was consumed in the making, which is offered as the reason nobody can produce any of them now — an aetiology run backwards, accounting for an absence rather than a presence.
They took the wolf out to an island called Lyngvi in a lake called Ámsvartnir and produced the ribbon. Several of them tried and failed to tear it, then handed it to Fenrir with the observation that a stronger creature might manage what they could not.
He was not fooled for a moment, and his refusal is a piece of reasoning, not a growl. There is no reputation to be had, he says, from snapping a thread that thin. And if it was made with craft and cunning rather than with iron, it is not going anywhere near his legs.
The gods said he was afraid. He said he was not afraid; he was unwilling to be tricked. Then he named his terms: someone puts a hand in his mouth, and leaves it there, as a pledge that this is done in good faith.
The assembly looked at one another. It is the finest silence in the Edda.
Týr put his right hand between the wolf's jaws.
What it cost
The wolf lunged, and the more he fought the harder the ribbon drew. Everyone laughed except Týr, who lost his hand at the wrist — which is why the wrist is called the wolf's joint in poetry, and why Týr is the one-handed god ever afterwards.
They pulled the cord's end through a slab of stone called Gjöll and drove it into the earth, ran a chain called Gelgja from it, and set a boulder called Þviti over the whole anchorage. Fenrir's jaws came open at them so appallingly that a sword was wedged in to stop them closing, standing on end between the gums below and the palate above. He howls, and the drool that runs from his propped jaws makes a river called Ván — Expectation, which is a grim name for a river of spit and an excellent name for what the gods are now doing.
He lies there until the day he does not.
Where the story actually comes from
The continuous narrative above survives in exactly one place: Snorri Sturluson's Gylfaginning, written in Iceland in the 1220s. No Eddic poem tells it end to end.
The older verse knows the situation without narrating it. Völuspá has the wolf breaking loose and swallowing Odin at the end of the world. Vafþrúðnismál takes the same outcome for granted. Lokasenna has Loki taunting Týr over the missing hand and Týr answering that he lacks a hand and Loki lacks a son he can be proud of. Skaldic poets used "feeder of the wolf" and "the one-handed god" as ordinary ways of saying Týr, which means the audience of court poetry knew this story centuries before Snorri wrote it down.
So the shape is old and secure; the furnishing — the two fetters' names, the six ingredients, the island, the sword in the jaws — rests on Snorri alone, and should be described that way rather than presented as pan-Scandinavian tradition.
The best visual evidence is on the Isle of Man. Thorvald's Cross at Kirk Andreas, tenth or eleventh century, carries a man with a spear and a bird at his shoulder whose foot has gone into the mouth of a large beast; the standard reading is Odin going down at Ragnarök, which is the other half of this myth. Swedish carvings such as the Ledberg stone show a comparable wolf-and-leg composition.
The one-handed god and the comparative argument
Georges Dumézil built a well-known case that Týr's hand belongs to an inherited Indo-European pattern: a pair of sovereign figures, one who mutilates an eye to gain knowledge and one who mutilates a hand to guarantee an oath. His parallels were Odin against Týr, and on the Roman side the one-eyed Horatius Cocles against Mucius Scaevola, who burned off his right hand to prove Rome could not be frightened. Comparativists have also pulled in the silver arm of Nuada in Irish tradition.
It is genuinely suggestive and it is genuinely contested. The criticism is that the pattern is assembled from stories with different plots, different motives and no demonstrable line of descent, and that Dumézil's tripartite scheme finds what it goes looking for. Treat it as an argument worth knowing rather than a fact about Týr.
Threads this myth leaves hanging
Did the gods have any alternative? Within the logic of the texts, no — but the texts also record that the wolf gave them one. He offers to be bound if they will act in good faith. They decline, in the person of Týr, who acts in bad faith with his own hand as the collateral. The tragedy is not that the gods were forced; it is that they chose the version that required someone to lie.
Is Fenrir the same animal as Garmr? Unsettled, and it turns on a single stanza. Snorri distinguishes them — Garmr is the hound bound at Gnipahellir who fights Týr at the end, while Fenrir takes Odin — but Völuspá's refrain about the loosening hound has been read as referring to Fenrir throughout, which would make Snorri's tidy pairing his own systematising.
What was the sanctuary rule about? Norse holy ground had a real legal status; blood spilled on it was a pollution requiring redress. The gods' refusal to kill Fenrir on the spot is not sentimentality but jurisdiction, and it is the closest the myth comes to telling you that they know they are in the wrong.
Why does the wolf have three names? Fenrir, which appears to mean something like fen-dweller; Fenrisúlfr, simply the wolf of Fenrir, which has confused readers since the Middle Ages into treating Fenrir as a place; and Vánagandr, the monster of the river Ván, which names him after his own saliva.
For the other bound and waiting monsters, see the wolf and the hound; for the day the anchorage fails, Ragnarök; and for who is related to whom in all this, the Norse family tree and the Norse tradition hub.