Fairies

Fairies are a race in the The Book of Lost Tales.

Behind the scenes
Fairies were the prototypes of the high elves in later versions of Middle-earth. They have very different personalities than the latter race.

Elements of the fairy motif remain in the final edition of the Hobbit, and is the last source to maintain some of those details before Tolkien switched directions.

"were descended from the ancient tribes that never went to Faerie in the West."