The word 'tiff' emerged in the early 18th century, originally referring to a slight outburst of temper or a small draft of liquor. Its exact origin is uncertain, but it is widely considered an onomatopoeic creation, mimicking the sound of a petty puff or exhalation of irritation. This imitative quality logically connects to its modern meaning of a minor, often petty, argument or quarrel—a verbal "puff" of annoyance rather than a serious conflict. Its journey reflects how language can encapsulate small human disputes in a brief, expressive sound.

This word is a simplex. It is an onomatopoeic formation, likely imitative of the sound of a slight puff or blow.