Because he rules
People "rule" lines - Wikipedia
a ruler is called 'une règle' (fem.) in French
Monarchy.
A king is one kind of ruler but a ruler can be other types also. They can be a queen, a prince, a baron or regent; and some are called a premier, a chairman, or some have been called 'president for life'.
Sultana
In Egypt, they believed that all pharaohs were gods, making them have the complete right to rule the land.
a ruler is called "Fürst"
A ruler is called 'une règle' (fem.) in French.
Called a straight edge
A egept ruler is called a Pharaoh
The ruler is called an Amir and the Amir today is Subah
If the ruler is a dictator, it is known as a dictatorship.
A country whose ruler has unlimited power is called an autocracy.
The female ruler of an empire is called an Empress. The feminine of Emperor is Empress.
he was called the ruler
In the world of Drafting and Architecture, it is called a Scale.
a ruler is called 'une règle' (fem.) in French
An unjust ruler might be called a tyrant.