Early Quenya
etl
noun. ivy
etil
noun. ivy
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 appearing as ᴱQ. etl “ivy” in the Qenya Lexicon and Poetic and Mythological Words of Eldarissa of the 1910s derived from the early root ᴱ√ETE “cling together” (QL/36). In the Qenya Lexicon it had an alternate form etil.
Neo-Quenya: In Tolkien’s later writing, √ET meant “out(side)”, but I think this ivy word can still be based on this root in the sense of “✱a thing clinging to the outside”; I would thus use ᴺQ. etil “ivy” for purposes of Neo-Quenya.