/jooh"pon, jooh pon"/ ; Fr. /zhyuu pawonn"/ , n. , pl. jupons /-ponz, -ponz"/ ; Fr. /-pawonn"/ .
a close-fitting tunic, usually padded and bearing heraldic arms, worn over armor.
Also, gipon .
[ 1350-1400; ME jopo ( u ) n jupon, equiv. to OF jupe a kind of jacket + -on n. suffix ]