Absolutist (noun)

1. A person who advocates or adheres to absolutism.
2. A person who believes in the absolute power of a ruler, government, or institution.

Origin:

From latin absolutus, past participle of absolvere "to make free, set free".

Examples:

1. He was an absolutist in his political beliefs.
2. The king was an absolutist and would not tolerate any opposition.
3. The dictator was an absolutist who suppressed political opposition.
4. The ruler was an absolutist and believed that his power was absolute.
5. The leader of the country was an absolutist who imposed his will on the people.