brownie
mischievous sprite
A metaphor for a leprechaun could be "a mischievous sprite of Irish folklore, guarding a pot of gold at the end of the rainbow."
hobgoblin
Goblin
"Lutin" in French means "imp" or "sprite," referring to a mischievous or playful supernatural creature. It is often depicted as a small, elf-like being in folklore and fairy tales.
brownie
Puck or Robin Goodfellow is a mischievous sprite.
One type of sprite, elf, or apparition is a "hobgoblin".
Fairies and other mythical creatures were believed to roam the lands a long time ago in various folklores and legends. "Goodfellow" is thought to be derived from the name "Robin Goodfellow," a mischievous sprite-like creature from English folklore known for his playful and sometimes trickster nature.
"Feo-follet" is a term from Catalan folklore that translates to "ugly goblin" or "ugly sprite" in English. It typically refers to a mischievous or malevolent creature, often associated with causing trouble or playing pranks. In some contexts, it may also represent a figure used to scare children into behaving well.
Zdenka Quinn has written: 'The water sprite of the golden town' -- subject(s): Czechs, Fairy tales, Folklore
A brownie is a character from British and Scottish folklore, often depicted as a small, helpful sprite or household fairy. Traditionally, brownies are known for assisting with chores and tasks at night while remaining unseen, but they can become mischievous if not treated well. They are commonly associated with rural settings and are believed to dwell in homes, farms, or fields. In exchange for their help, brownies expect small offerings, such as food or milk.