noun

usurpation

yoo-zer-PAY-shun/ˌjuːzɜːrˈpeɪʃn/

The act of taking power or rights without lawful authority.

The court calls the general's takeover a usurpation of power.

A medieval throne room after an unlawful takeover: a stern armored noble sits with the royal crown while the displaced ruler in royal robes is held back at the doorway by guards, shocked courtiers look on.

Etymology

usLatinuse

+urpLatinto seize

+ationLatinact or process

The roots express seizing something for use, and the ending names the act. What Latin called a “taking into use” became the wrongful taking of another's position or authority.

In context

US National Archives36:52

Madison says you know we may have gone too far in the act of protesting the federal government's usurpation of our rights the First Amendment right the Free Press

For the People, For the Country: Patrick Henry’s Final Political Battle

More examples

Lawmakers condemn the decree as a usurpation of their authority.
The constitution protects citizens against usurpation of their rights.
The king's usurpation of the throne sparks a rebellion.

Forms

usurpation · usurpations

usurp verb — To take power or rights without lawful authority.

usurper noun — Someone who takes power without lawful authority.

Similar words

seizure: Emphasizes taking control forcibly or suddenly, not necessarily unlawfully.
encroachment: Suggests gradual intrusion on rights rather than outright seizure.