In ancient rome, during times of turmoil, one leader with absolute power would be selected to rule temporarily. this leader was called a

dictator

marshal

chief

authoritarian

The correct answer is Dictator.

Marshal and Chief were not roman words or roman titles, while authoritarian was a type of rule. All dictators are authoritarian, but they aren't referred to as such. That's where the word Dictator comes from and its understanding in modern politics.

The answer is monsoons.