Fairy

Folkloric and scholarly accounts present fairies as a syncretic category whose presumed origins vary by commentator and region: they have been framed as pagan deities or nature spirits, as spirits of the dead, as an older race of humans or prehistoric peoples, and in Christian-influenced interpretations as demoted angels or demonic-like beings. Historians also note broader cultural exchanges (including suggested influence from Persian peri) and medieval literary developments that together produced the diverse modern concept "fairy." These layered explanations reflect ongoing reinterpretation rather than a single origin narrative.

Generally anthropomorphic and humanlike in appearance, fairies are described in sources as ranging from 'quite tiny' to human-sized; some traditions note small fairies that could magically expand to imitate humans. Regional descriptors include Orkney accounts of short figures dressed in dark grey and sometimes wearing armour, occasional mentions of green eyes, and variability in footwear (some bare, some shod). Wings are common in Victorian and later art but are rare in older oral folklore; flight in traditional accounts is typically by magic rather than anatomical wings.

Fairies possess a range of magical powers in the folkloric record: size-shifting, magical flight, enchantment, and the ability to influence human affairs. They are often tricksters and can be capricious or hostile; historically they were blamed for unexplained misfortunes and illnesses (for example, certain accounts attribute tuberculosis or birth deformities to fairy action). They are associated with leading travellers astray (will-o'-the-wisp motifs), haunting particular locations, and engaging in exchange or boundary-crossing with humans.