Where does “ज़नाना” come from?

ज़नाना (Hindi) comes from Urdu زنانه, from Classical Persian زنانه, from Persian زن, from Middle Persian zan, from Proto-Indo-Iranian ǰánHs, from Proto-Indo-European gʷḗn, from Proto-Indo-European gʷen- — woman.

ज़नाना (Hindi): women's; feminine, womanly, effeminate; harem,...