Early Quenya
qenya
noun. Elvish
qenya
pronoun. *our (emphatic possessive inclusive)
qenyaqetsa
proper name. *of Qenya-language
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.
Qenya
qenya
noun. Elvish (Tongue), Elfspeech, Elf-latin; belonging to the Qendi, Quendian
qendya Archaic
noun. Elvish
engwa
pronoun. *our (emphatic possessive inclusive)
Gnomish
cweneglin
noun. *Elvish (Qenya)
cwedhrin
noun. *Elvish (Qenya)
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.
Quenya
quendya Archaic
noun. Elvish
Primitive elvish
kwenyā
adjective. Elvish
Sindarin
edhellen
adjective. elvish
edhellen
elvish
(of language apparently = ”Sindarin”), pl. edhellin****