What's in a Name? Imp, Elf, Fairy, Good Neighbor

When it comes to the denizens of Fairy, what's in a name? As it happens a lot, but there's also a great deal of confusion because many of the terms in English that we apply today to specific beings are rooted in generic terms that were once interchangeable. The water is further muddied by the widespread use of euphemisms, designed to encourage a positive response should you attract the attention