- overturn (v.)
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- early 13c., of a wheel, "to rotate, roll over," from over- + turn (v.). Attested from c. 1300 in general transitive sense "to throw over violently;" figurative meaning "to ruin, destroy" is from late 14c. Of judicial decisions, "to reverse," it is attested from 1826. Related: Overturned; overturning.