Correct spelling for the English word "gunmanwomen" is [ɡˈʌnmɐnwˌɪmɪn], [ɡˈʌnmɐnwˌɪmɪn], [ɡ_ˈʌ_n_m_ɐ_n_w_ˌɪ_m_ɪ_n] (IPA phonetic alphabet).
The word "gunmanwomen" does not have an established etymology because it is not a recognized or commonly used word in English. It seems to be a combination of the words "gunman" and "women", potentially suggesting a person who is skilled in using firearms and is female. However, it is important to note that the term you mentioned is not a standard or widely accepted term, and it is unlikely to be found in dictionaries.