mərd (Azerbaijani) comes from Persian مرد, from Middle Persian mlt', from Old Persian 𐎶𐎼𐎫𐎡𐎹, from Proto-Iranian mŕ̥tah, from Proto-Indo-Iranian mŕ̥tas, from Proto-Indo-European mr̥tós, from Proto-Indo-European mer- — to die; to disappear; sea, lake, wetland.