Quenya 

rauco

powerful, hostile, and terrible creature

rauco ("k") noun "a powerful, hostile, and terrible creature", "very terrible creature", especially in the compound Valarauco noun "Demon of Might" _(WJ:415, VT39:10, cf. SA:raukor. In the Etymologies, stem RUK, the gloss is "demon".)_ Longer variant arauco. The plural form Valaraucar "Balrogs" seems to contain the variant rauca.

rauco

noun. demon, powerful hostile and terrible creature

Quenya [PE17/048; SA/rauko; VT39/10; WJ/415] Group: Eldamo. Published by

rauca

demon

rauca ("k")noun "demon" (PE17:48). Variant of rauco, q.v.

rauca

noun. demon

Valarauco

demon of might

Valarauco ("k") noun "Demon of Might" (here vala- assumes its basic meaning "power, might"), Sindarin balrog(WJ:415). Pl. Valaraucar (sic, not -or) "Balrogs", apparently containing rauca (q.v.) as an alternative form of rauco "demon" (SA:val-, SA:rauco). Earlier forms from the "Qenya Lexicon" are Valcaraucë, Malcaraucë (q.v.), apparently abandoned in LotR-style Quenya.

arauco

powerful, hostile, and terrible creature; demon

arauco ("k")noun "a powerful, hostile, and terrible creature; demon" (variant of rauco). Tolkien's earlier "Qenya" has araucë "demon" (WJ:415, LT1:250)

arauco

noun. demon

Primitive elvish

raukō

noun. demon

Primitive elvish [WJ/390] Group: Eldamo. Published by

Sindarin 

raug

noun. demon, powerful hostile and terrible creature

Sindarin [PE17/048; SA/rauko; WJ/415] Group: Eldamo. Published by

balrog

demon

n. (mighty) demon. A word made in ancient S. for the spirits (of 'māyan' origin) corrupted to his service by Melkor in the days outside Arda, before the coming of the Elves and the assault uopon Utumno. Q. pl1. Valaraucar. In a draft, Tolkien presented the Balrogs as of "Valar or Maian origin" (PE17:48). >> raug

Sindarin [(PE17 Sindarin Corpus) PE17:48] < BAL powerful, mighty + RUK. Group: Parma Eldalamberon 17 Sindarin Corpus. Published by

graug

noun. demon, powerful hostile and terrible creature

raug

demon

n. demon. Q. rauca. >> Balrog

Sindarin [(PE17 Sindarin Corpus) PE17:48] -. Group: Parma Eldalamberon 17 Sindarin Corpus. Published by

balrog

fire-demon

(i valrog), pl. balroeg (i malroeg). Coll. pl. balrogath is attested. Archaic form ✱balraug. (MR:79, WJ:415). The etymological meaning is rather ”power-demon”.

raug

demon

raug (-rog in compounds, as in Balrog), pl. roeg (idh roeg), coll. pl. #rogath (isolated from Balrogath, MR:79). Also used = ”powerful, hostile, and terrible creature”.

raug

demon

(-rog in compounds, as in Balrog), pl. roeg (idh roeg), coll. pl. #rogath (isolated from Balrogath, MR:79). Also used = ”powerful, hostile, and terrible creature”.

Noldorin 

rhaug

noun. demon

Noldorin [Ety/GOS; Ety/RUK] Group: Eldamo. Published by

Beware, older languages below! The languages below were invented during Tolkien's earlier period and should be used with caution. Remember to never, ever mix words from different languages!

Qenya 

rauko

noun. demon

Gnomish

graug

noun. demon

Gnomish [GL/21; GL/42; LT1A/Balrog; PE13/099; QL/032] Group: Eldamo. Published by

grôg

noun. demon

taura

adjective. powerful

Gnomish [GL/69; GL/72] Group: Eldamo. Published by

Early Noldorin

graug

noun. demon

Early Noldorin [PE13/138; PE13/145] Group: Eldamo. Published by

Early Quenya

rauke

noun. demon

turwa

adjective. powerful

An adjective for “powerful” in the Qenya Lexicon of the 1910s under the early root ᴱ√TURU “am strong” (QL/96).

Neo-Quenya: Since √TUR remains connected to power in Tolkien’s later writings, I’d retain this word for purposes of Neo-Quenya, but I’d use it for general or abstract forms of potency, as opposed to being physically powerful (turca or [ᴹQ.] poldórea) or politically powerful (túrëa). For example: turwa nus “a powerful smell” or turwa vangwe “a powerful storm”.

Early Quenya [QL/096] Group: Eldamo. Published by

valma

adjective. powerful

Early Quenya [PE16/144] Group: Eldamo. Published by

Middle Primitive Elvish

ruk

root. demon

Middle Primitive Elvish [Ety/GOS; Ety/ÑGWAL; Ety/RUK] Group: Eldamo. Published by