FOIL

foil. Foil, v. to defeat, overcome, push, set off

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Foil (foil), v. t. [imp. & p. p. Foiled (foild); p. pr. & vb. n. Foiling.] [[F. fouler to tread or trample under one's feet, to press, oppress. See Full, v. t.]] 1. 1. To tread under foot; to trample.
King Richard . . . caused the ensigns of Leopold to be pulled down and foiled under foot. Knoless. Whom he did all to pieces breake and foyle, In filthy durt, and left so in the loathely soyle. Spenser. 2. 2. To render (an effort or attempt) vain or nugatory; to baffle; to outwit; to balk; to frustrate; to defeat.
And by � mortal man at length am foiled. Dryden. Her long locks that foil the painter's power. Byron. 3. 3. To blunt; to dull; to spoil; as, to foil the scent in chase. Addison.