Early Quenya
lindelokte
noun. laburnum, (lit.) singing cluster
lindelokte
proper name. Singing Cluster
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 in the Qenya Lexicon of the 1910s appearing as ᴱQ. lindelokte “singing-cluster, laburnum”, a combination of ᴱQ. lin (lind-) “musical voice” and ᴱQ. lokte “flower cluster” (QL/55). ᴱQ. Lindelokte was also an earlier name for Q. Laurelin, one of the Two Trees (LT1/22).
Neo-Quenya: For purposes of Neo-Quenya I would update this word to ᴺQ. lindelos (lindelós-) “laburnum, (lit.) singing cluster”, using the later elements lindë “singing” and lós [þ] “mass of flowers”. I think this word can coexist with culumalda which Tolkien said also might refer to a laburnum (RC/626).