Decorum
Decorum , noun
[Latin decōrum, from decōrus. 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; decency of conduct; seemliness; that which is seemly or suitable.
Negligent of the duties and decorums of his station.
If your master
Would have a queen his beggar, you must tell him,
That majesty, to keep decorum, must
No less beg than a kingdom.