Early Quenya
hyasse
noun. rushing ?hence (?noise)
kisin
adjective. cleft
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!
The word ᴱQ. vassale “rustling” appeared in the Qenya Lexicon of the 1910s under the early root ᴱ√VASA (QL/100). A similar (untranslated) word ’wassale appeared elsewhere in the lexicon derived from ᴱ√GWASA, possibly of the same or similar meaning (QL/103). Another word ᴱQ. hyasse appeared in Early Qenya Word-lists of the 1920s with a hard-to-read gloss, either “rushing hence” or “rushing noise”, near a similar word ᴱQ. hyasta- “to rush, rustle” (PE16/144).
Neo-Quenya: For purposes of Neo-Quenya, I would use ᴺQ. hyassë for “rushing noise, ✱rustling” based on a Neo-Root ᴺ√KHYAS.