An
elf is a creature of Germanic mythology. The elves were originally imagined as a
race of minor nature and fertility gods, who are often pictured as youthful-seeming
men and
women of great beauty living in forests and underground places and caves, or in wells and springs. They have been portrayed to be long-lived or immortal and as beings of magical powers.
A
troll is a fearsome
member of a mythical anthropomorphic
race from Norse mythology. Originally more or less the
Nordic equivalents of giants, although often smaller in size, the different depictions have come to range from the fiendish giants – similar to the ogres of
England (also called Trolls at times, see Troller's Gill) – to a devious, more human-like folk of the wilderness, living underground in hills, caves or mounds. In the Faroe islands, Orkney and Shetland tales, trolls are called trows, adopted from the Norse language when these islands were settled by Vikings.
The meaning of the word troll is unknown. It might have had the original meaning of supernatural or magical with an overlay of malignant and perilous. Another likely suggestion is that it means "someone who behaves violently". In old Swedish law, trolleri was a particular kind of magic intended to do harm. It should also be noted that North Germanic terms such as trolldom (witchcraft) and trolla/trylle (perform magic tricks) in modern Scandinavian languages does not imply any connection with the mythical beings. Moreover, in the sources for Norse mythology, troll can signify any uncanny being, including but not restricted to the Norse giants (jötnar).
A
goblin is an evil, crabby, or mischievous creature of folklore, often described as a grotesquely disfigured or gnome-like phantom, that may range in height from that of a dwarf to that of a human. They are attributed with various (sometimes conflicting) abilities, temperaments and appearances depending on the story and country of origin. In some cases goblins have been classified as constant annoying little creatures somewhat related with the celtic brownie.
According to "The Concise Oxford Dictionary of
Current English" the name is probably derived from the Anglo-French gobelin (medieval Latin gobelinus), which is probably a diminutive of Gobel, a name related to the word kobold. Goblin is also related to the French lutin[1]. In addition, there also exist various other alternative spellings of the word goblin, including: Gobblin, gobeline, gobling, goblyn, gobelinus (medieval Latin), and vulgus gobelinum (demon) (Latin).