English folktales of the early modern period typically portray elves as small, elusive people with mischievous personalities (see illustration). They are not evil but might annoy humans or interfere in their affairs. They are sometimes said to be invisible. In this tradition, elves became more or less synonymous with the fairies that originated from native British mythology, for example, the Welsh Ellyll (plural Ellyllon) and Y Dynon Bach Tg.
In USA, Canada, and the United Kingdom, the modern children's folklore of Santa Claus typically includes diminutive, green-clad elves as Santa's assistants. They wrap Christmas gifts and make toys in a workshop located in the Arctic. In this portrayal, elves slightly resemble nimble and delicate versions of the dwarfs of Norse mythology. However, the elf legends are in fact, even older than Saint Nicholas, the bishop on whom Santa Claus was originally based.Little documentation exists on English rustic beliefs and terminology before the nineteenth century, but it seems that the term elf was used, at least on some occasions or in some places, for various kinds of uncanny wights, either human-sized or smaller. But other terms were also used.The Discworld novels by Terry Pratchett feature extradimensional creatures called elves, that go back to the old myths of cradle-robbing fairies. The book Lords and Ladies is about an encounter with "the fair folk".The Scandinavian elves were of human size, which allowed "normal" human interactions: for example, in Hrlf Kraki's saga, the Danish king Helgi finds an elf-woman on an island and rapes her. Famous men could be elevated to the rank of elves after death, and in one such case, the full-sized smith hero Vlund is called an elf.
However, in Elizabethan England, Shakespeare imagined elves as little people. He apparently considered elves and fairies to be the same race. In Henry IV, Part 1, i. 4, he has Falstaff call Prince Henry, "you starveling, you elfskin!", and in his Midsummer Night's Dream, his elves are almost as small as insects. On the other hand, Edmund Spenser applies elf to full-sized beings in The Faerie Queene.
Tad Williams's Memory, Sorrow, and Thorn trilogy focuses heavily on a long-lived, fair-skinned, magical race known as the Sithi, which are described as elves in all but name.In Denmark the elves seem to have merged with the Huldra and are beautiful females who can dance a man to death. If you see them from the back, they are hollow.
