Lludd is probably a variant of Nudd, altered due to alliterative assimilation with his byname Llaw Ereint, meaning 'silver hand'. This name is associated with a legendary hero from Welsh mythology, known as Lludd Llaw Ereint, who is the son of Beli Mawr and the father of Creiddylad. The name reflects his mythological significance and his role as a ruler and hero in Welsh tales.