ruse

From Middle English rūse (“evasive movements of a pursued animal; circuitous course taken by a hunter to pursue a game animal”), from Old French rëuse, ruse (“evasive movements of a pursued animal; trickery”) (modern French ruse (“trick, ruse; cunning, guile”)), from ruser (“to use cunning, to be crafty, beguile”), possibly from Latin rursus (“backward; on the contrary; again, in return”) or Latin recūsāre, from recūsō (“to decline, refuse; to object to, protest, reject”). Doublet of recuse and rouse in the latter case.

The verb is derived from the noun. Compare Middle French ruser (“to use cunning, to be crafty, beguile”); see further above.