Early Quenya
eldasilqe
noun. maidenhair fern, (lit.) elf tress
Beware, older languages below! The languages below were invented during Tolkien's earlier period and should be used with caution. Remember to never, ever mix words from different languages!
A word appearing as ᴱQ. eldasilqe “maidenhair fern, (sea) elf’s tress” in the Qenya Lexicon and Poetic and Mythological Words of Eldarissa, a combination of ᴱQ. Elda “elf” and ᴱQ. silqe “tree of hair” (QL/35; PME/35).
Neo-Quenya: I would update this word to ᴺQ. eldafindë “maidenhair fern, (lit.) elf tress” for purposes of Neo-Quenya, using the later word findë for “tress”.