-erc-, -erci-

A form of aerobic exercise which incorporates many aspects of boxing without actually hitting anyone.

Boxercisers generally find themselves punching empty air, punchbags, speedballs, or pads held by another person.

1. To force or cause to act or think in a certain way by use of pressure, threats, or intimidation; to compel.
2. To dominate, restrain, or control forcibly.
3. To bring about by force or threat or necessity, by physical, moral or intellectual means.
4. Etymology: from about 1451, from Middle French cohercer, from Latin coercere "to control, to restrain"; from com-, "together" plus arcere, "to enclose, to confine, to contain, to ward off".

1. Someone who compels by force, intimidation, or authority; especially, without regard for individual desires or volition.
2. A person who dominates or controls; especially, by exploiting fear, anxiety, etc.

That which may or ought to be restrained or compelled.

An instrument used for the measurement of coercive force.

1. The process of compelling a person to act, or refrain from acting, contrary to his or her free choice often by use of threat of physical or moral force.
2. Force or threats used to make someone do something against his or her will.

1. Characterized by or inclined to coercion.
2. Using force or threats to make someone do something against his or her will.

1. By constraint.
2. Characterized by or inclined to coercion.

Energetic dancing done for the purpose of aerobic exercise.

1. An act of employing or putting into play; the free exercise of intellect; the exercise of an option.
2. The discharge of a duty, function, or office.
3. Activity that requires physical or mental exertion, especially when performed to develop or maintain fitness: "She took an hour of vigorous daily exercise at the local sports center.
4. A task, problem, or other effort performed to develop or maintain fitness or increase skill: a piano exercise; a memory exercise.
5. An activity having a specified aspect; such as, an undertaking that was an exercise in futility.
6. Etymology: about 1340, "condition of being in an active operation" from Old French exercice, from Latin exercitium, from exercitare, frequentative of exercere, "to keep busy, to drive on"; literally, "to remove restraint", from ex-, "off" plus arcere, "to keep away, to prevent, to enclose".

The original sense may have been "driving farm animals to the field to plow"; meaning "physical activity". This was first recorded in English about 1386.

1. Not to be coerced or compelled.
2. That which cannot be forced.