overturner (overterner)

One who or that which overturns or subverts. I have brought before you a robber of the public trea sure, an overturner of law and justice. Swift. overtwertt, adv . and prep . A Middle English variant of overthwart. Chaucer. over twine (ō-vér-twin'), v. t. To twine over or about; inwreathe. Shelley.