- panty girdle
Origin of pantyDiminutive of pant 2
One wears a pair of panties (like pant(aloon)s), not a panty. The singular form is used in derived terms, but rarely to refer to a single pair of panties.
Recorded since 1845 in the plural, meaning "drawers for men", a derogatory diminutive of pants (the shortening of pantaloons); meaning "underpants for women or children" first recorded 1908.