Imp

An imp is a European mythological being similar to a fairy or demon, frequently described in folklore and superstition.

The Old English noun and associated verb impian appear to come from an unattested Late Latin term *emputa (impotus is attested in the Salic law), the neuter plural of Ancient Greek: ἔμϕυτος 'natural, implanted, grafted'.

[3] A legend in Lincolnshire dating to the 14th-century recounts that the devil, being annoyed with the completion of the cathedral, paid a visit, accompanied by two imps who proceeded to wreak havoc in the building.

For the tiniest angel, with amethyst eyes, And hair spun like gold, 'fore the alter [sic] did rise, Pronouncing these words in a dignified tone "O impious imp, be ye turned to stone!

"[4] While his companion fled, the unfortunate imp remains enslaved by the Angel Choir at the east end of the cathedral.

Most of the time, these pranks were harmless fun, but some could be upsetting and harmful, such as the switching of babies or leading travelers astray in places unfamiliar to them.

Eventually, it came to be believed that imps were the familiar spirit servants of witches and warlocks, where the little demons served as spies and informants.