A fairy is a type of mythical being or legendary creature, generally described as anthropomorphic, found in the folklore of multiple European cultures, a form of spirit, often with magical, metaphysical, supernatural, or preternatural qualities.
Myths and stories about fairies do not have a single origin but are rather a collection of folk beliefs from disparate sources. Various folk theories about the origins of fairies include casting them as either demoted angels or demons in a Christian tradition, as deities in pagan belief systems, as spirits of the dead, as prehistoric precursors to humans, or as spirits of nature.