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.
-(u)va
suffix. future suffix
-va
suffix. adjectival
ea-
verb. to be; to exist, have being, be found extant in the real world
ho
preposition. from
ná-
verb. to be
o-
prefix. together
va
preposition. away
wa-
prefix. together
ye-
verb. to be
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.