the other world; land of fairies.
Pronounced something like Ann-noon , this is the Celtic other world, the underworld, or the land of the dead. It is a place of great power and contained a cauldron that King Arthur had to travel into Annwn to fetch.
Underworld of Celtic myth. Ruled by Annwn, and, briefly, Pwyll (who exchanged forms with Annwn for one year and one day). Adapted as Annuvin in Lloyd Alexander's Prydain Chronicles.
City of the Dead, ruled by the goddess Morhiag; the underworld. Annwn is described as being surrounded by a maze of great thorns, and lies on the far side of the river Leath.
Annwn or Annwfn ( Middle Welsh Annwvn, sometimes inaccurately written Annwyn, Annwyfn or Annwfyn) was the Otherworld, the land of souls that had departed this world in Welsh mythology. Ruled by Arawn, or much later by Gwynn ap Nudd, it was essentially a world of delights and eternal youth where disease is absent and food is ever-abundant. Annwn was said to lie so far to the west that not even Manawydan ap Llyr had found it, for you could only reach Annwn by dying yourself.