Overview
A leprechaun is a diminutive supernatural being in Irish folklore, classed by some as a type of solitary fairy. They are usually depicted as little bearded men, wearing a coat and hat, who partake in mischief. In later times, they have been depicted as shoe-makers who have a hidden pot of gold at the end of the rainbow.
Leprechaun-like creatures rarely appear in Irish mythology and only became prominent in later folklore.
Etymology
The Anglo-Irish (Hiberno-English) word leprechaun is descended from Old Irish luchorpán or lupracán, via various (Middle Irish) forms such as luchrapán, lupraccán, (or var. luchrupán).
Modern forms
From Wikipedia (CC BY-SA 4.0).