1. to claim or seize (power, authority, or rights) without justification; to assume or take for oneself without right
Usage: transitive verb; formal register
2. to attribute or ascribe (something) to oneself without warrant
Usage: transitive verb; formal register

Examples

• The dictator arrogated all legislative power to himself.
• She arrogated the right to make decisions for the entire team without consulting anyone.
• He arrogated to himself the title of expert despite having no formal training.
• The company arrogated control of the project from the original developers.
• They arrogated authority that rightfully belonged to the elected officials.
• No individual should arrogate the power to judge others without evidence.