De-cō'rum, n.
(118), n. [Lat. decorum, from decorus. See DECOROUS.] Propriety of manner or conduct; grace arising from suitableness of speech and behavior to one's own character, or to the place and occasion; seemliness; decency. “Negligent of the duties and decorums of his station.” Hallam.
Synonyms—DECORUM, DIGNITY. Decorum, in accordance with its etymology, is that which is becoming in outward act or appearance; as, the decorum of a public assembly. Dignity springs from an inward elevation of soul producing a correspondent effect on the manners; as, dignity of personal appearance.
He kept with princes due decorum, Yet never stood in awe before ’em. Swift.
Name to me yon Achaian chief, for bulk Conspicuous, and for port. Taller indeed I may perceive than he, but with these eyes Saw never yet such dignity and grace. Cowper.