satrapy
The territory governed by a satrap; a province of any of several ancient empires of West Asia (specifically, of the Median or Achaemenid empires or certain of their successors, including the Sasanian Empire and Hellenistic empires).
historical
Several, which occur as one Satrapy in the system given by Herodotus, are given in the lists as distinct provinces.
Where it comes from
Borrowed from Ancient Greek σατραπεία (satrapeía).
Adapted from the Wiktionary entry satrapy (CC BY-SA 4.0).