To give the lie to

Also found in: Idioms.
To charge with falsehood; as, the man gave him the lie.
To reveal to be false; as, a man's actions may give the lie to his words.

See also: Lie, Lie

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in classic literature ?
The archdeacon hesitated for a moment, then he allowed a gloomy smile to escape, which seemed to give the lie to his response: " Credo in Deum ."
A fierce cry seemed to give the lie to her favourable report: the clothed hyena rose up, and stood tall on its hind-feet.
The big Tahitian smiled and nodded, his black eyes, soft and deer- like, seeming to give the lie to so belligerent a nature.