OpenEtymology

underpants

UKˈʌndəpæntsUSˈʌndərpænts

Meaning

1n

a piece of underwear covering the area between the waist and the top of the legs

Structure

word structure
1
under
beneath
+
2
trousers

Usage

he packed clean socks and underpants for the trip.

the toddler was running around in just his underpants.

she bought a new pack of cotton underpants.

Etymology

The word 'underpants' is a transparent English compound formed from the adverb 'under' and the noun 'pants'. 'pants' itself is a clipping of 'pantaloons', which entered English via French and Italian, named after the venetian comic character pantalone, stereotypically depicted wearing tight trousers. The compound logically denotes garments worn beneath the outer trousers. Its formation follows a common English pattern where 'under-' prefixed to an item of clothing specifies its position as a lower or inner layer.

Analysis

Structure
under (beneath) + pants (trousers)=underbeneath+pantstrousers

"under" (old english, preposition/adverb meaning 'beneath, below'); "pants" (shortened from 'pantaloons', from italian 'pantalone', ultimately from saint 'pantaloun', a character in comedy who wore tight trousers, functional role: core noun).

Underpants Meaning & Word Parts (under + pants) | OpenEtymology