overthrow -
the termination of a ruler or institution (especially by force)
ending,
termination,
conclusion the end of a word (a suffix or inflectional ending or final morpheme); "I don't like words that have -ism as an ending"
overthrow -
the act of disturbing the mind or body; "his carelessness could have caused an ecological upset"; "she was unprepared for this sudden overthrow of their normal way of living"