dethrone

To depose; to forcibly relieve a monarch of the monarchy.

[…] he (the said Pope) doth not onely claime to be spirituall head of all Christians, but also to haue an Imperiall Ciuill power ouer all Kings and Emperours, dethroning and decrowning princes with his foote, as pleaseth him […]

Thou, Goddess-Mother, with our Sire comply, Nor break the sacred Union of the Sky: Lest, rouz’d to Rage, he shake the blest Abodes, Launch the red Lightning, and dethrone the Gods.

To remove any governing authority from power.

Not only where the chief magistrate enters into measures, in themselves, extremely pernicious to the public, but even when he wou’d encroach on the other parts of the constitution, and extend his power beyond the legal bounds, it is allowable to resist and dethrone him;

[…] demands by Sakharov and others for further change—notably the dethroning of the increasingly discredited Party from its privileged position—could not be swept aside […]

To remove from any position of high status or power.

1753, Arthur Murphy, The Gray’s Inn Journal, No. 23, 24 March, 1753, Volume 1, London: P. Vaillant, 1756, p. 168, […] we conclude, sincerely wishing, that you may continue to display your usual Graces of Elocution, and admirable Powers of Action, untill Harlequin shall dethrone the great Shakespear, or Pierot usurp the Seat of Johnson.

“[…] I’m a dethroned elder child, remember. My temper isn’t so damned long as you sometimes think!”

To remove (something) from a position of power or paramount importance.

All that was Good and Holy, is dethron’d, And Lust, and Rapine are for justice own’d.

To endeavour to reason love out of the world, would […] offend against common sense; but an endeavour to restrain this tumultuous passion, and to prove that it should not be allowed to dethrone superior powers, or to usurp the sceptre which the understanding should ever coolly wield, appears less wild.