Effort vs. Efford — Which is Correct Spelling?

The use of physical or mental energy to do something; exertion.

A difficult exertion of strength or will

A usually earnest attempt

Something done or produced through exertion; an achievement

Force applied against inertia.

The force needed by a machine to accomplish work on a load.

The work involved in performing an activity; exertion.

An endeavor.

A force acting on a body in the direction of its motion.

To make an effort.

To strengthen, fortify or stimulate

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.

To stimulate.

Earnest and conscientious activity intended to do or accomplish something;

Use of physical or mental energy; hard work;

A series of actions advancing a principle or tending toward a particular end;

A notable achievement;