úvanimonoun. monster, corrupt or evil creature, type of corrupted or horrible form
úvanimomonster (creature of melko[r]) (ban, lt1:272); pl. úvanimor
úvanimo noun "monster (creature of Melko[r]) (BAN, LT1:272); pl. úvanimor "monsters" is attested (UGU/UMU, (GŪ). According to VT45:7, 16 Tolkien did not capitalize the word úvanimo_, though it was so printed in the entries BAN and GŪ in the Etymologies as printed in LR. The (pl.) form _húvanimor was abandoned along with hú rather than ú- as a negative prefix, VT45:17.
[húvanimor, see úvanimo]
úvanonoun. monster, corrupt or evil creature
ulundomonster, deformed and hideous creature
ulundo noun "monster, deformed and hideous creature" (ÚLUG)
Ulban (Ulband-) noun "monster" (a name of Melko) (LT1:260)