A noun appearing as ᴱQ. mis (mist-) “urine” in the Qenya Lexicon of the 1910s from the early root ᴱ√MISI “mingere”, which is Latin for “urinate” (QL/62).

Neo-Quenya: I’d retain ᴺQ. mis (mist-) “urine” for purposes of Neo-Quenya, based on the later root ᴹ√MIS having to do with wet things. It conflicts somewhat with Q. mistë < √MIZDI “drizzle, light rain”, but I don’t see that as a problem, as the word for “urine” might have originated euphemistically as “make rain”.