- Main article: Balrog
 Other versions of the legendarium
In The Etymologies, the word Balrog is derived from ñgwalaraukô displaying a derivation from root ñgwal- (referring to "torment, cruelty") instead of val-. This derivation would produce the Quenya word **Nwalarauco.
Valarauco is not forming a regular plural **Valaraucor but changing the final vowel in the plural (-o > -ar). Helge Fauskanger suggests that the singular form uses the variant rauco, while the plural form uses the variant rauca for some reason.
Another Quenya word which displays similar properties is perhaps sundo.
- ↑ J.R.R. Tolkien, Christopher Tolkien (ed.), The War of the Jewels p.415
- ↑ J.R.R. Tolkien, "From Quendi and Eldar, Appendix D" (edited by Carl F. Hostetter), in Vinyar Tengwar, Number 39, July 1998 p.10
- ↑ 3.0 3.1 Helge Fauskanger, "Quettaparma Quenyallo" dated 25 December 2008, Ardalambion (accessed 24 October 2017)
- ↑ 4.0 4.1 J.R.R. Tolkien, Christopher Tolkien (ed.), The Lost Road and Other Writings, "Part Three: The Etymologies", RUK
- ↑ Conrad Dunkerson, "The Truth About Balrogs - What is the etymology of 'balrog'?", Tolkien Meta-FAQ (accessed 24 October 2017)