Potentate (noun)

A powerful ruler or sovereign, especially an absolute monarch.

Origin:

Derived from the latin word 'potentatus' meaning 'powerful ruler'.

Examples:

1. The potentate ruled the kingdom with an iron fist.
2. The potentates of the ancient world held immense power and wealth.
3. The meeting between the two potentates was highly anticipated.
4. The potentate was revered by his subjects as a fair and just ruler.
5. Many powerful and wealthy potentates have left their mark on history.