transitive. To rebut or contradict (an idea, statement, etc.); to prove (something) to be false or erroneous; to disprove. Obsolete.

To declare or prove to be false.

To destroy the force of (arguments, testimony, etc.); to destroy the grounds of (a doctrine, an opinion); to render ineffectual (a law, an…

To demonstrate or prove (absurdity, error, vanity, etc.) to be such; to expose (in its real character). Obsolete (= convict, v. 6b.)

To prove (a person) to be untrue or erroneous in his statements; to convict (a person) of falsehood or error; to refute, confute. Obsolete or archaic.

To declare or prove to be an imposture.

transitive. To undo or discredit the testimony of; to deprive of the right of being received in testimony.

transitive. To prove or assert to be inauthentic; to confirm as not genuine or authoritative.

To detect and expose (an error, etc.). Obsolete.

transitive. To disprove; to show to be false.

transitive. To divest of substance; to render unsubstantial.

transitive. Originally and chiefly British. To embarrass or humiliate (a person), especially by behaving badly in public. Also reflexive: to…