quatre-vingts

Etymology
From and, both of which are derived from Latin. The vigesimal pattern of expressing 80 as 4×20, however, is of origin; see, for example, 🇨🇬. (The Latin for 80 is .).

Numeral

 * 1) eighty, 80

Usage notes

 * When used in a compound, the form is used, e.g..
 * The term is used in some French-speaking cantons of Switzerland.