There are more words but they are from Tolkien's earlier conceptional periods. Tolkien likely changed these words as he evolved the aesthetics and completeness of the languages. You may even find languages that Tolkien later rejected. Do not mix words from different time periods unless you are familiar with the phonetic developments.
úmea
adjective. large
-umea
suffix. augmentative
-úme
suffix. augmentative
-(v)ando
adjective. augmentative
-(y)ando
adjective. augmentative
-ilda
suffix. augmentative
-lda
suffix. augmentative
-umya
suffix. augmentative
-yanda
adjective. augmentative
ulqa
adjective. evil
yanta
adjective. large
Below: Tolkien's Late Period (1950–1973). These are from Tolkien's late conceptual period — his most settled forms of the languages. Prefer these over the earlier ones above when composing new text.