Effort

Webster's Dictionary of the English Language

·vt To Stimulate.

II. Effort ·noun A force acting on a body in the direction of its motion.

III. Effort ·noun An exertion of strength or power, whether physical or mental, in performing an act or aiming at an object; more or less strenuous endeavor; struggle directed to the accomplishment of an object; as, an effort to scale a wall.