Náströnd
In Norse mythology, Nástrǫnd is a place in Hel where Níðhöggr lives and chews on corpses. It is the afterlife for those guilty of murder, adultery, and oath-breaking.Orthography
In the standardized Old Norse orthography, the name is spelled Nástrǫnd, but the letter 'ǫ' is frequently replaced with the Modern Icelandic ö for reasons of familiarity or technical expediency.''Poetic Edda''
The Völuspá says:''Prose Edda''
quotes this part of Völuspá in the Gylfaginning section of his Prose Edda. He uses the plural of the word: Nástrandir.