Synonyms for Overthrow (same or very similar meaning)
WordNet sense 1 (cause the downfall of; of rulers):
overturn, subvert, bring downWordNet sense 2 (rule against):
override, overrule, reverseWordNet sense 3 (the act of disturbing the mind or body):
derangement, upset, upsetFrom the ODE community, based on WordNetadd/edit