1) Depose 2) Disinvest 3) Divest 4) Leave without power 5) Oust 6) Oust from authority 7) Oust from power 8) Remove a monarch 9) Remove from high office 10) Remove from office 11) Remove from power 12) Take the championship from 13) To depose 14) To remove from a throne 15) Uncrown Found on https://www.crosswordclues.com/clue/dethrone