A word in The Etymologies of the 1930s appearing as ᴹQ. úruva “fiery”, an adjectival form of ᴹQ. úr “fire” under the root ᴹ√UR “be hot”, but these words were deleted when the meaning of the root was revised to “wide, large, great” (Ety/UR).
Neo-Quenya: The word úr “fire” was restored in some later writings, and this adjective may have been restored with it. I personally would use ᴺQ. úruva “fiery” for purposes of Neo-Quenya. See the entry on ᴹQ. úr for further discussion on the viability of “fire” words based on √UR.