D defs.my
Entry 1 sense Webster, 1913

Etiquette

/ĕt'-ək-ət/ · Et·i·quette · IPA /ˈɛt.ɪˌkɛt/
01 n. The forms required by good breeding, or prescribed by authority, to be observed in social or official life; observance of the proprieties o…
  1. 1.
    The forms required by good breeding, or prescribed by authority, to be observed in social or official life; observance of the proprieties of rank and occasion; conventional decorum; ceremonial code of polite society.
    “The pompous etiquette to the court of Louis the Fourteenth.” Prescott.