D defs.my
Entry 1 sense Webster, 1913

Toparch

· To·parch · IPA /ˈtɒpɑːk/
01 n. The ruler or principal man in a place or country; the governor of a toparchy.
  1. 1.
    The ruler or principal man in a place or country; the governor of a toparchy.
    “The prince and toparch of that country.” Fuller.