 In some cases, Tolkien writes about runes on sword blades but does not give them in detail.The Elves in the film series use curved swords, whereas the author mostly assigns such swords to Orcs and enemy Men (he mentions one Elf in particular bearing a curved sword in very early writings).The designers went so far as to invent new weapons, such as the Elvish sword "Hadhafang", used by Arwen; while the design is original, the name is derived from Tolkien's "Etymologies" in "The Lost Road".