Nidhogg: The Dragon That Gnaws at the Roots of the World

Níðhöggr, anglicized as Nidhogg, is the dragon of Norse mythology that gnaws the roots of the world tree Yggdrasil and chews the corpses of oath-breakers on Náströnd, the Corpse Shore. He appears in the Eddic poems Völuspá and Grímnismál and in Snorri Sturluson's Gylfaginning, and he may outlast Ragnarök itself.

What Does the Name Nidhogg Mean?

The Old Norse form is Níðhöggr, and you will also see Nidhoggr or Nithhogg in English. The name joins two words. Níð was one of the ugliest terms in the language: public infamy, the state of a person stripped of honor, an accusation serious enough that Norse law took it up. Höggr means striker or hewer.

Put together, the name comes out as something like "Malice Striker" or "the one who strikes with shame." That fits. Everything Nidhogg does in the sources involves dishonor. He feeds on the corpses of oath-breakers and murderers, and he spends eternity trading insults up the trunk of the world tree.

Where Nidhogg Gnaws: The Roots of Yggdrasil

Grímnismál, stanza 35, gives the classic image. The ash Yggdrasil, it says, suffers more hardship than people know: a hart bites it from above, its trunk rots, and Nidhogg tears at it from beneath. The world tree is not a serene monument in Norse mythology. It is under attack from every direction, and Nidhogg is its most persistent enemy.

He is not even alone down there. Stanza 34 says more serpents lie beneath the ash "than an unwise ape would think" (that is Bellows' actual phrase) and names six of them: Góinn and Móinn, Grábakr, Grafvölluðr, Ófnir and Sváfnir. The poem does not rank them, but later tradition treats Nidhogg as their chief.

Snorri organizes the picture in Gylfaginning, chapter 15. The tree has three roots. One reaches over Niflheim, the world of primordial cold, and beneath it lies the spring Hvergelmir, where Nidhogg gnaws the root from below. Note the disagreement, though. Grímnismál 31 says the three roots stand over Hel, the frost-giants and mankind, while Snorri routes them to the Æsir, the frost-giants and Niflheim. The two sources never quite line up, and no retelling can force them to. What they agree on is the gnawing.

Náströnd: The Corpse Shore Where He Feeds

Völuspá, stanzas 38 and 39 in the Bellows numbering, describes a hall standing far from the sun on Náströnd, the Corpse Shore. Its doors face north. Serpents wind around its walls, and their venom drips down through the smoke vent. Wading in those poison streams are oath-breakers, murderers, and men who seduced the wives of others. There, the poem says, Nidhogg sucks the blood of the slain while a wolf tears at men.

Snorri quotes the passage in Gylfaginning, chapter 52, where he calls it a hall woven of serpent backs like a wattle-house, and lists it among the dwellings that remain after the world burns: Gimlé for the worthy, and Náströnd with Hvergelmir for the worst of the dead.

One honest caveat belongs here. Some scholars think the Náströnd stanzas show Christian coloring, because a hall where sinners suffer for specific moral crimes looks more like a preacher's hell than the usual Norse afterlife, where Hel simply received everyone who died of sickness or old age. Völuspá was written down in Christian Iceland, and nobody can now separate the layers with certainty.

The Insult Feud With the Eagle

Grímnismál 32 records one of the oddest jobs in the nine worlds. A squirrel named Ratatoskr runs up and down the ash, carrying "the words of the eagle" down from the unnamed bird perched in the crown to Nidhogg at the roots. Snorri adds in Gylfaginning 16 that a hawk called Veðrfölnir sits between the eagle's eyes.

The traffic is slander. The dragon and the eagle never meet, so the feud can never be settled; it just circulates, insult for insult, forever. For a creature whose name is built on níð, the crime of shaming words, it is the perfect occupation.

What the Primary Sources Actually Say

The genuine dossier on Nidhogg is remarkably short. It amounts to Völuspá stanzas 38-39 and 66, Grímnismál stanzas 32 and 34-35, Snorri's prose in Gylfaginning chapters 15-16 and 52 (most of which paraphrases those same verses), and a bare entry in the serpent name-lists of Skáldskaparmál. Perhaps a dozen lines of poetry, all told. Everything else attached to his name, from video games to modern novels, is invention layered on top of that thin base.

You can check every word yourself. Henry Adams Bellows' translations of Völuspá and Grímnismál are free to read at sacred-texts.com.

Does Nidhogg Survive Ragnarok?

Völuspá ends on him, and the ending is strange. After the sun turns black and the earth sinks into the sea, the seeress watches a new green world rise, a hall roofed with gold, fields growing unsown. Then, in the final stanza, she adds one last image: the dark dragon comes flying from Niðafjöll, the glittering serpent, bearing the bodies of men in his feathers (fjöðrum in the Old Norse; Bellows renders it "on his wings") as he passes over the plain. Then the poem stops. The manuscripts end the stanza with the seeress herself, not the dragon: now she must sink.

There are two serious readings. In one, evil persists even inside the renewed world; the dragon still flies, and the cycle is not clean. In the other, the vision has simply ended, and the poem snaps back to the grim present before the seeress sinks away. The Old Norse supports either, Snorri does not resolve it, and scholars still argue. We do not know. Anyone who tells you confidently that Nidhogg does or does not survive Ragnarök is guessing past the evidence.

The Serpent People Still Wear

Norse artists could not leave the serpent-dragon alone. It coils along the prows of ships, twists and bites through Urnes-style carvings, and frames the text bands of runestones across Scandinavia. The beast that presses against the world's foundations clearly meant something worth carving over and over.

That is roughly why people still wear it. A dragon at the root of the world tree reads less as doom and more as stubbornness: the thing that never stops working, in the dark, whether or not anyone is watching. In our experience, that is exactly the quality most buyers of serpent pieces say they want to carry, and it is a more faithful reading of the sources than "evil monster" ever was.

FAQ: Nidhogg

Is Nidhogg a dragon or a serpent?

The sources use both words. Völuspá's final stanza calls him a 'dreki', a dragon, and a 'naðr', a serpent, in the same breath, and says he flies with corpses caught in his feathers. So the texts give us a flying, feathered serpent-dragon, and modern art is free to pick its emphasis.

What does Nidhogg do to Yggdrasil?

He gnaws its roots from below. Grímnismál 35 lists him among the constant torments of the ash, alongside the harts biting its crown and the rot in its trunk, and Gylfaginning 15 places him at the spring Hvergelmir beneath the root that reaches over Niflheim.

Is Nidhogg evil?

The Norse texts never moralize about him directly, but everything they attach to him is dark: his name means roughly 'Malice Striker', he devours perjurers and murderers on Náströnd, and he works to undermine the tree that holds the worlds together. He is as close to pure malice as Norse myth gets.

Does Nidhogg survive Ragnarok?

Unclear, and honestly so. The last stanza of Völuspá shows him flying with corpses after the new world rises, which some read as evil enduring past Ragnarök and others read as the seeress returning to the present as her vision ends. The poem allows both, and no other source settles it.

Who is Nidhogg's enemy at the top of the tree?

An unnamed eagle that sits in Yggdrasil's crown, with the hawk Veðrfölnir between its eyes according to Snorri. The squirrel Ratatoskr carries insults between the eagle and Nidhogg, per Grímnismál 32, and the sources never say the feud is resolved or who has the better of it.

Sources

• Völuspá, stanzas 38-39 and 66 (Poetic Edda), in the Bellows translation at sacred-texts.com
• Grímnismál, stanzas 31-35 (Poetic Edda), in the Bellows translation at sacred-texts.com
• Snorri Sturluson, Gylfaginning chapters 15-16 and 52, plus the serpent name-list in Skáldskaparmál (Prose Edda)

Keep exploring: start with our guide to the Norse gods and goddesses, climb the branches of Yggdrasil, the world tree, meet the other dragons of Norse legend, or browse our silver dragon and serpent pendants.