ᴺQ. [ᴱQ.] quonda n. “choking smog, smoke” (Category: Smoke)
Neo-Quenya: I think this word can be salvaged as ᴺQ. quonda based on a neo-root ᴺ√KWOD “choke, suffocate, drown”, but not all Neo-Quenya writers accept quo- as a valid combination in Quenya: see the discussion of how [wo] became [o] for details. If you do use quonda, I would use it for a thick chocking smoke (smog) as opposed to ordinary smoke for which I’d use Q. usquë.
Reference ✧ QL/78 ✧ “choking smog, smoke”
|ᴱ√QOŘO > qonda||[kʷonðā] > [kʷonða] > [kʷonda]||✧ QL/78|