The name comes from J. R. R. Tolkien's elves, who in their own language were called the Eldar. The history of the Eldar in Warhammer 40,000 mimics that of Tolkien's elves, to the point that they are a "dwindling race" in the game universe, as the elves were in Middle-earth's Third Age. Eldar culture also borrows from the Samurai -- for example, it is explained that "to the Eldar, war is an art," and White Dwarf magazine talks of "the Path of the Eldar", much like the "way of the Samurai".