parmâtgân, emperâturi, šâhanšâhi
1) A political unit having an extensive territory or comprising a number of
territories or nations and ruled by a single supreme authority.
M.E., from O.Fr. empire "rule, authority, kingdom," from L. imperium "command, dominion, sovereignty," from → imperare "to command."
Parmâtgân, from parmât, present stem of parmâtidan, → imperare, + -gân suffix denoting relation and place appearinfg in the name of lands and localities (Šâpurgân, Gorgân, Golpâyegân, etc.).