Overthrow

wiktionary

ref

From Middle English overthrowen, [1] equivalent to over- +‎ throw. Compare Dutch overdraaien, German überdrehen, Old English oferweorpan(“to overthrow”).

For the noun sense, compare Middle English overthrow, overthrowe(“destruction, downfall”), from the verb. [2]

over- +‎  throw. 

etymonline

ref

overthrow (v.)

c. 1300, ouerthrouen, "to knock down, throw down, cast headlong," from over- + throw (v.). Figurative sense of "to cast down from power, defeat" is attested from late 14c. Related: Overthrown; overthrowing. Earlier in same senses was Middle English overwerpen "to overturn (something), overthrow; destroy," from Old English oferweorpan (see warp (v.)).

overthrow (n.)

mid-15c., overthrou, "destruction, downfall, action of overthrowing," from over- + throw (n.). Meaning "state of being overthrown" is by 1903.