Fairies/Faeries/ Fairy/Faery/ Fey/Fay, (No matter which way you spell it, they all possess the same meaning).
The earliest known name was Fays. The term fairy today covers most folk~lore from Britain and Ireland. The Daoine Sidhe (Shee) of the Highlands (Scotland), better known as the Tuatha De Danann of Ireland, the Tylwyth Teg of Wales.
Fairies were also known to some as the Wee Folk, in Ireland they were also called Good Neighbours. The Irish folk however took no chances. Neighbours would leave their doors open at night (especially after supper~time) in order for the fey to run through as they would come out after dark, this was so they wouldn't play tricks, and the good neighbours would always leave their scrapped food out at night for them.
Some fairies are friendly, others are not, and most know they can be triksters. They do posess many habits most adults will not put up with, however, children will. Also, if you were to meet a fairy, be careful, as their goals are much different than ours.
Some fairies live together in harmony, some prefer to live alone. The fairies who live alone dress differently from the grouped, less grand attire, they would wear fox skins, green moss, leaves or flowers.
Fairies vary in size from very tiny or short to 18 inches. Yet others are three or four feet tall, while some are of human size or larger. The tuatha de danna are a group of Giants.
The men of the trooping Fairies in Ireland, the Daoine Sidhe and the Shefro wear green coats and coloured caps. The women are known to wear green gowned attire and red shoes. The mens caps usually get kitted with feathers, and the womans gowns are highly decorated with gold and sometimes pearls.
Fairies have to eat and sleep, just like us humans, they can also get sick, and can die. Fairies love music and dancing. Among their musical instruments are the panpipes, bagpipes, symbols, tambourines, harps and whistles. Fairies value neatness, the ability to keep a secret and generosity among humans. They also like humans to leave out fresh water, and as most people know who love fairy lore, don't forget ot leave out an offering of milk, bread, wine, honey or cheese as a piece offering. ~ Especially after a ritual.