Early Quenya
marin
noun. (ripe) fruit (of apple type)
marin(a)
adjective. ripe, mature
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.
A word for a “(ripe) fruit” in the Qenya Lexicon of the 1910s under the early root ᴱ√MARA having to do with ripeness (QL/59). Tolkien clarified that it was used for fruits “esp. [from] trees of the apple type” (QL/59) and “with pulp firm [and] seeds like apple” (QL/61). In the contemporaneous Poetic and Mythological Words of Eldarissa the word was simply glossed “fruit” (PME/59).