Official Description: Two of the youngest Dwarves, Fili and Kili have been born into the royal line of Durin and raised under the stern guardianship of their uncle,Thorin Oakensheild. Neither has ever travelled far, nor ever seen the fabled Dwarf City of Erebor. For both, the journey to the Lonely Mountain represents adventure and excitement. Skilled fighters, both brothers set off on their adventure armed with the invincible courage of youth, neither being able to imagine the fate which lies before them.
TheOneRing.net Description: Fili, along with his brother Kili, accompanied their uncle Thorin Oakenshield on the Quest of Erebor. Both Fili and Kili appear to have a greater love of music than the others: inside Smaug’s chamber, while the Dwarves are picking out gems and gold, Fili and Kili both pull golden harps from the wall. Fili is also noted for having the best eyesight of the thirteen Dwarves. Fili was slain defending Thorin at the Battle of the Five Armies.
Analysis: the name “Fili”, like most of the names of Tolkien’s Dwarves, was derived from an old Norse poem titled “Völuspá”.