Deep dishonour and insult believed to corrupt a man's social and magical status.

Níð denotes the gravest form of defamation in Old Norse society. Accusing a man of argr, unmanly passivity, was the classic níð and could legally be answered with lethal force.

Níð was conveyed through nídvísur, defamatory verses, and níðstǫng, poles topped with a horse head and carved with runic insults. These were believed to have genuine magical effect, compelling shame and misfortune upon the victim.

Attestations

Grágás, Íslenska konungsbók (ca. 1250)
The Icelandic law code regulates penalties for níð and the permissibility of violent response.