Airmail Etiquette

An airmail etiquette, often shortened to just etiquette, is a label used to indicate that a letter is to be sent by airmail. The term is from French étiquette "label, sticker" (cognate to stick), from which also English etiquette "rules of behavior".

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Famous quotes containing the word etiquette:

    Books treating of etiquette ... are often written by dancing-masters and Turveydrops and others knowing little of the customs of the best society of any land.
    Mrs. H. O. Ward (1824–1899)