potentate

Potent enough to pass the rules - a monarch.

potentate = potent+ate the one who ate the world with his potent is a monarch or dictator

potentate = potent (powerful) + at + e (Everywhere and everything) = the person who is powerful to do everything is ruler

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pontentate~dominate ; a person who has potent and dominates his nation is a potentate !

potent + state.

potent=powerful so a powerful ruler who ate all rules