Early Quenya
minga
adjective. waning
minga-ránar
in the moon waning
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.
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.
The seventeenth line of the Oilima Markirya poem (MC/213). The first word is the adjective minga “waning” followed by an inflected form ránar of Rána “Moon”. Gilson, Welden, and Hostetter suggest it might be an idiomatic use of the dative (PE16/85), but I think it might be a variant form of the locative: the r-locative.
Decomposition: Broken into its constituent elements, this phrase would be:
> minga-rána-r = “✱waning-moon-in”