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noun Scandinavian Mythology.
  1. a serpent in Niflheim who gnaws upon the lowermost root of Yggdrasil.
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Also Nid·hug [need-hœg] /ˈnid hœg/.

Origin of Nidhogg

< Old Norse Níthhǫgg, equivalent to níth evil + hǫgg hewer
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for nidhogg

Historical Examples

  • The squirrel named Ratatosk runs up and down the ash, and seeks to cause strife between the eagle and Nidhogg.

    The Elder Eddas of Saemund Sigfusson; and the Younger Eddas of Snorre Sturleson

    Saemund Sigfusson and Snorre Sturleson