A (rejected) noun in Early Qenya Word-lists of the 1920s glossed “foam” (PE16/139). Its etymology is unclear.
Early Quenya
falasta-
verb. to surge, make a sound like surf
falmo
noun. foam
hoiye
noun. foam
uilosse
noun. foam
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 noun in Early Qenya Word-lists of the 1920s glossed “foam” (PE16/136). Its etymology is unclear.