CALM, adjective

1. Still; quiet; being at rest; as the air. Hence not stormy or tempestuous; as a calm day.

2. Undisturbed; not agitated; as a calm sea.

3. Undisturbed by passion; not agitated or excited; quiet; tranquil; as the mind, temper, or attention.

CALM, noun Stillness; tranquillity; quiet; freedom from motion, agitation, or disturbance; applied to the elements, or the mind and passions.

CALM, verb transitive To still; to quiet; as the wind, or elements; to still, appease, allay or pacify, as the mind, or passions.