Etiquette Definition

ĕtĭ-kĕt, -kĭt

noun

The forms, manners, and ceremonies established by convention as acceptable or required in social relations, in a profession, or in official life.

Webster's New World

The rules for such forms, manners, and ceremonies.

Webster's New World

The customary behavior of members of a profession, business, law, or sports team towards each other.

Wiktionary

A label used to indicate that a letter is to be sent by airmail.

Wiktionary

Synonyms:

Antonyms:

Other Word Forms of Etiquette

Singular:

etiquette

Plural:

etiquettes

1740, from French étiquette "property, a little piece of paper, or a mark or title, affixed to a bag or bundle, expressing its contents, a label, ticket" from Middle French estiquette (“ticket, memorandum”), from Old French estiquette, from estechier, estichier, estequier "to attach, stick", (compare Picard estiquier "to stick, pierce"), from Frankish *stikkan, stikjan (“to stick, pierce, sting”), from Proto-Germanic *stikaną, *stikōną, *staikijaną (“to be sharp, pierce, prick”), from Proto-Indo-European *st(e)ig-, *(s)teig- (“to be sharp, to stab”). Akin to Old High German stehhan "to stick, attach, nail" (German stechen "to stick"), Old English stician "to pierce, stab, be fastened". The French Court of Louis XIV at Versailles used étiquettes, "little cards", to remind courtiers to keep off of the grass and similar rules. More at stick (verb), stitch.

From Wiktionary
French from Old French estiquet label ticket

From American Heritage Dictionary of the English Language, 5th Edition