underpants
UK: ˈʌndəpænts | US: ˈʌndərpænts
n. a garment worn under outer clothing, typically covering the lower torso and upper legs; underwear for the lower body.
The word "underpants" is a compound of "under" (from Old English under, meaning "beneath") and "pants" (shortened from "pantaloons," derived from Italian Pantalone, a comedic character who wore tight trousers). The term emerged in the late 19th century to describe undergarments worn beneath outer clothing, reflecting a practical naming logic—garments "under" the "pants."
He forgot to pack clean underpants for the trip.
The store sells cotton underpants in various colors.
She folded the underpants neatly and placed them in the drawer.
In winter, thermal underpants provide extra warmth.
The toddler proudly picked out his own underpants with cartoon prints.