noun
emir
eh-MEER/eˈmɪr/
A ruler or commander in a Muslim society.
The emir directs soldiers and officials from his raised seat.

Etymology
Arabic amīr means “commander,” placing authority at the center of the title. English uses it for military command as well as the rule of a chief or prince.
In context
And your leader will be an emir
The emir of Qatar has the world's most expensive fleet,
More examples
- The emir appoints a new commander for the army.
- Several emirs attend the regional summit.
- In this historical account, the emir leads his troops into battle.
Forms
emir · emirs
emirate noun — A territory ruled by an emir.