Correct spelling for the English word "men womens" is [mˈɛn wˈɪmɪnz], [mˈɛn wˈɪmɪnz], [m_ˈɛ_n w_ˈɪ_m_ɪ_n_z] (IPA phonetic alphabet).
"Men womens" is not a recognized term, and it does not have a specific etymology. It seems to be a combination of the word "men" and "womens" with a spelling or grammatical error.
The word "men" comes from the Old English word "mann", which originally meant human being. It eventually became specific to males and is still used to refer to adult human males today.
The term "women" comes from the Old English word "wīfmann", which means "woman, female servant". "Wīfmann" is a compound of "wīf" (meaning "woman") and "mann" (meaning "human being"). Over time, "wīfmann" evolved into "wimman" and eventually "woman".
However, the term "men womens" does not have a clear etymology or a coherent meaning in standard English.