satrap (n.)
late 14c., "governor of a province of ancient Persia," from Latin satrapes, from Greek satrapes, from Old Persian xšathrapavan-, literally "guardian of the realm," from xšathra- "realm, province" (related to xšayathiya "king," cognate with Sanskrit kshatra; see shah) + pavan- "guardian," from PIE *pa- "to protect, feed" (see food). Related: Satrapy.