Tyrannize (verb)

1. To exercise power over in a cruel and oppressive way; to dominate and control through fear and abuse of authority.
2. To use one's power or authority to treat others cruelly or unjustly.

Origin:

Late 16th century: from french tyranniser or late latin tyrannizare, from latin tyrannus (see tyrant).

Examples:

1. The dictator tyrannized his people, using fear and intimidation to maintain control.
2. She felt that her boss was tyrannizing her by giving her impossible deadlines.
3. The government officials were accused of tyrannizing the citizens.
4. He tyrannized his family with his cruel behavior.
5. The king tyrannized his subjects with his unjust laws.