A man who practises seiðr, often stigmatised as unmanly.

Seiðmaðr is the designation for a male practitioner of seiðr. Because seiðr required a passive, receptive state it was considered unsuitable for men under Norse gender norms, and male practitioners risked being called ergi.

Despite the stigma, Óðinn is described as the supreme seiðmaðr, a paradox reflecting his dual nature as both war god and master of sorcery. Male seiðmenn also appear in fornaldarsögur.

Attestations

Lokasenna, str. 24
Loki accuses Óðinn of practising seiðr, calling him ergi.