dynast

From Late Latin dynastēs, from Ancient Greek δυνάστης (dunástēs, “lord, ruler”), from δύναμαι (dúnamai, “to be powerful”).

dynast (plural dynasts)

A ruler or governor, especially a hereditary ruler or someone who founded or is part of a dynasty.
- 2011 July 30, “Embraceable you”, in The Economist:
  Now the dynasts who rule each country are cementing political ties.

a ruler or governor, especially a hereditary ruler or someone who founded or is part of a dynasty

English