Meaning

noun (folklore) fairies that are somewhat mischievous

noun one who is playfully mischievous

originFrom Middle English impen, ympen (“to plant; (figuratively) to bury; to graft; to add to, insert, put into, set in; to mend (a falcon’s feather) by attaching a new feather on to the broken stump”), from Old English impian, ġeimpian (“to graft”), from Proto-West Germanic *impōn (“to graft”), from Vulgar Latin *imputō (“to graft”), from Ancient Greek ἔμφῠτος (émphŭtos, “implanted; planted”), from…

Etymology from Wiktionary, CC BY-SA 3.0