
thumb|right|Níðhǫggr gnaws the roots of Yggdrasill in this illustration from a 17th-century Icelandic manuscript. thumb|Runestone Uppland Runic Inscription 887|U 887 (1070–1100), Skillsta, Sweden, showing a [[runic dragon and a bipedal winged dragon. Winged dragons are rare in Germanic art and myth prior to the 13th century, and Nidhogg is uniquely described as feathered and flying in Völuspá.]]
thumb|right|Níðhǫggr gnaws the roots of Yggdrasill in this illustration from a 17th-century Icelandic manuscript. thumb|Runestone Uppland Runic Inscription 887|U 887 (1070–1100), Skillsta, Sweden, showing a [[runic dragon and a bipedal winged dragon. Winged dragons are rare in Germanic art and myth prior to the 13th century, and Nidhogg is uniquely described as feathered and flying in Völuspá.]]
Nidhogg (, ; older , Modern Icelandic: ) is a Germanic dragon in Norse mythology who is said to gnaw at the roots of the world tree, Yggdrasil, and is likewise associated with the dead in Hel and Niflheim.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).