A word appearing as ᴱQ. orivaine “pod, seed pod, pea” in the Qenya Lexicon of the 1910s, a combination of ᴱQ. ore (ori-) “seed” and ᴱQ. vaine “sheath, pod” (QL/70). In the contemporaneous Poetic and Mythological Words of Eldarissa this word was glossed “peapod (a boat)” (PME/70).

Neo-Quenya: In Tolkien’s later writing he had ᴹQ. erde for “seed”, so I think this word could be updated to ᴺQ. erdevainë “seed pod, peapod” for purposes of Neo-Quenya. For an individual “pea” I would use ᴺQ. mildë.