Quote Originally Posted by slohairt View Post
Actually, the concept of dark and light elves comes more from Norse/Germanic mythology which Tolkien was well-acquainted with. He then used it to create his own mish-mash!
Yes, and Tolkien had the ambitious aim of providing an Anglo-Saxon mythology (obviously heavily based on the Norse/Germanic mythologies) which he considered sadly lost.
I guess what I meant is that the people talking about daoi- and du-sith seem to me to be taking their inspiration from Tolkien and other fantasy sources rather than European legends. Put it this way, one of the highest results when searching on Daoi-sith is for a game called adventure quest....

Certainly I have never heard about dark and light Sidhe in Irish legends. The concept of the dark elf is much more likely to be represented by a Fomor or Firbolg (not that the Sidhe are considered particularly similar to light elves, they are probably equivalent to dark (or at the very least shady) elves by themselves!)