Niut, Nown, Noyt, Nu, Nuc, Nucs, Nudd the Generous, Nuit, Nun, Nus, Nuth, Nuz, Vunde, Vut

Father of Arthurís Sir Yder (Yder the son of Nut) as well as the warriors Gwynn, Owain, and Dryon.

Nut is a mortal incarnation of the Celtic god Nodens, whose counterpart in Irish mythology is Nuada Argetlam. His father was named Senyllt. The Welsh Triads call him Nudd the Generous.

In the romance of Yder, we learn that Nut, the duke of Alemaine in Scotland, abandoned Yderís mother, but left half of a ring with her so that he could someday be identified. Yder set out on a quest for his father when he came of age. They eventually encountered each other and fought a combat before they learned each otherís identities and reconciled. At the conclusion of the romance, Nut finally marries Yderís mother.

He appears as one of Arthurís kings in Robert Biketís Lai du Cor, where his wife is shown to be unfaithful in a chastity test.

Nuc is called Duke of Alemaigne, by which Albany (Scotland; in Gaelic: Alban) or Germany is probably intended.