What is the meaning of Jupon?

A close-fitting sleeveless jacket, descending below the hips, worn over armour.

A petticoat.

accusative singular of jupo

petticoat, underskirt

a bit of skirt

a sleeveless jacket worn over armor (medieval)

A jupon (an overcoat for armour, usually bearing heraldic symbols)

underskirt, petticoat, jupon

Source: wiktionary.org