adj., n., & v.
adj. 1 tranquil, quiet, windless (a calm sea; a calm night). 2 (of a person or disposition) settled; not agitated (remained calm throughout the ordeal). 3 self-assured, confident (his calm assumption that we would wait).
n. 1 a state of being calm; stillness, serenity. 2 a period without wind or storm.
v.tr. & intr. (often foll. by down) make or become calm. calmly adv. calmness n.
[ ME ult. f. LL cauma f. Gk kauma heat ]