Níðhöggr
E360407
Níðhöggr is a fearsome dragon or serpent from Norse mythology that gnaws at the roots of the world tree Yggdrasil and is associated with chaos and destruction.
All labels observed (2)
How this entity was disambiguated
This entity first appeared as the object of triple T3442021 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Níðhöggr Context triple: [Yggdrasil, attackedBy, Níðhöggr]
-
A.
Jormungandr
Jormungandr is the colossal World Serpent of Norse mythology, destined to encircle Midgard and battle Thor during Ragnarök.
-
B.
Fenrir
Fenrir is a monstrous wolf in Norse mythology prophesied to kill the god Odin during Ragnarök.
-
C.
Oger
Oger is a renowned Champagne-producing village in France’s Côte des Blancs, celebrated for its high-quality Chardonnay vineyards and prestigious Grand Cru status.
-
D.
Angrboða
Angrboða is a giantess in Norse mythology known as the mother of monstrous beings, including the wolf Fenrir, the serpent Jörmungandr, and the underworld goddess Hel.
-
E.
Víðarr
Víðarr is a silent Norse god associated with vengeance and strength, prophesied to avenge Odin by slaying the wolf Fenrir at Ragnarök.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Níðhöggr Target entity description: Níðhöggr is a fearsome dragon or serpent from Norse mythology that gnaws at the roots of the world tree Yggdrasil and is associated with chaos and destruction.
-
A.
Jormungandr
Jormungandr is the colossal World Serpent of Norse mythology, destined to encircle Midgard and battle Thor during Ragnarök.
-
B.
Fenrir
Fenrir is a monstrous wolf in Norse mythology prophesied to kill the god Odin during Ragnarök.
-
C.
Oger
Oger is a renowned Champagne-producing village in France’s Côte des Blancs, celebrated for its high-quality Chardonnay vineyards and prestigious Grand Cru status.
-
D.
Angrboða
Angrboða is a giantess in Norse mythology known as the mother of monstrous beings, including the wolf Fenrir, the serpent Jörmungandr, and the underworld goddess Hel.
-
E.
Víðarr
Víðarr is a silent Norse god associated with vengeance and strength, prophesied to avenge Odin by slaying the wolf Fenrir at Ragnarök.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
figure in Norse mythology
ⓘ
mythological dragon ⓘ mythological serpent ⓘ |
| actionAtRagnarök | flies with corpses in its wings ⓘ |
| appearsAt | end of Völuspá ⓘ |
| associatedWith |
Náströnd
ⓘ
Yggdrasil ⓘ chaos ⓘ corruption ⓘ death ⓘ destruction ⓘ |
| associatedWithEvent |
Ragnarok
ⓘ
surface form:
Ragnarök
|
| category |
Norse legendary creature
ⓘ
mythological dragon in European tradition ⓘ |
| culture | Norse ⓘ |
| describedBy | Snorri Sturluson ⓘ |
| domain | roots of the world tree ⓘ |
| feedsOn |
bodies of adulterers
ⓘ
bodies of murderers ⓘ bodies of oath-breakers ⓘ corpses of the dead ⓘ |
| function | undermining the foundations of the cosmos ⓘ |
| gender | male ⓘ |
| gnawsOn | roots of Yggdrasil ⓘ |
| inhabits | Hvergelmir ⓘ |
| languageOfName |
Old Norse language
ⓘ
surface form:
Old Norse
|
| location | underworld ⓘ |
| mentionedIn |
Poetic Edda
ⓘ
Prose Edda ⓘ Völuspá ⓘ |
| moralAssociation | punishment of moral transgressors ⓘ |
| mythology | Norse mythology ⓘ |
| nameMeaning |
Dread Biter
ⓘ
Malice Striker ⓘ |
| opposes |
cosmic stability
ⓘ
gods of Asgard ⓘ |
| residesIn | Niflheim ⓘ |
| role | enemy of cosmic order ⓘ |
| roleInMyth | tormentor of the wicked dead ⓘ |
| species |
dragon
ⓘ
serpent ⓘ |
| spelledAs |
Weapons of Odin
ⓘ
surface form:
Nidhogg
Níðhöggr self-linksurface differs ⓘ
surface form:
Nidhoggr
Níðhǫggr ⓘ |
| symbolizes |
decay
ⓘ
destructive forces ⓘ entropy ⓘ |
| threatens |
Yggdrasil
ⓘ
surface form:
world tree Yggdrasil
|
| typeOfEvil | chthonic monster ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Níðhöggr Description of subject: Níðhöggr is a fearsome dragon or serpent from Norse mythology that gnaws at the roots of the world tree Yggdrasil and is associated with chaos and destruction.
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Hvergelmir
subject surface form:
Hvergelmir