In Thor - the Dark World Malekith is the leader of the Dark Elves. The film obviously derives from the Marvel universe.
I also play a lot of tabletop wargames and I know Malekith is also a character there (also leading armies of Dark Elves in a fantasy setting). I'm curious as to the history of the name, character and the dark elf race.
It seems highly unlikely to me that two different companies would create such a similar character and race with the same names independently. However both Marvel and Games Workshop proactively protect their trademarks and copyrights.
How was the race of Dark Elves originally created and how was Malekith devised? Are there any references in other works of fiction such as Tolkien?