sídh (modern spelling: sí), a fairy rath (or fort) where the fairies are said to live. They are also known as aos sí (‘fairy folk’), slua sí (‘fairy host’), and daoine maithe (‘good people’). According to a life of St Patrick in the 9th-cent. Book of Armagh the sídh were the pagan gods of the earth over whom Christianity has triumphed, but according to Gaelic tradition they were the Tuatha Dé Danann, the ancient gods of Ireland residing in the fairy mounds all over the country [see mythology]. They feature most prominently in the mythological cycle in tales such as Cath Maige Tuired or Tochmarc Étaíne; in the Ulster cycle in Táin Bó Cuailnge, Togail Bruidne Da Derga, and many other tales; and throughout the Fionn cycle, where Fionn's own genealogy involves otherworld beings. A number of Anglo-Irish writers in the second half of the 19th cent. began collecting the folklore traditions of Ireland, notably T. C. Croker and Lady Wilde. These were joined by others more in tune with the native culture such as J. J. Callanan, Patrick Kennedy, and Canon John O'Hanlon. The literary revival gave rise to a renewed interest in the fairy-lore of Ireland, which came to be seen as a unique body of almost sacred literature of Celtic origin, encapsulating realities occluded by the advance of a materialistic civilization. The slua sí carry off mortals, most often children, if they are beautiful or otherwise exceptional, leaving a changeling (síofra or síobhra) behind. They also appear on coastlines, as mermaids (murúch, Hiberno-English merrow). Solitary fairies are known variously as the leipreachán, represented as a cobbler; the clúracán, or drunken fairy; the fear dearg (‘red man’, the otherworld colour), or trickster; the fear gorta (‘hunger-man’), a phantom appearing at times of famine; the dallacán, a headless sprite who rides on the death-coach (cóiste bodhar, ‘silent coach’); the leannán sí, a fairy lover, who drives his or her mortal lover to distraction; and the bean sí (banshee), who appears combing her red hair at the deaths of members of certain families. The púca (anglicé ‘pooka’) is the Irish form of the sprite familiar in English folklore as the night-mare.


