IPA: /ˈʌndərˌskɜːrt/
KK: /ˈʌndərˌskɜrt/
A piece of clothing that is worn underneath another skirt, often to add volume or shape, similar to a petticoat.
She wore an underskirt to give her dress a fuller look.
Underskirt → It is formed from "under-" (meaning beneath or below) and "skirt" (from Old Norse *skyrta*, meaning a shirt or garment). The word "underskirt" refers to a garment worn beneath a skirt, typically for added volume or coverage.
Think of something worn 'beneath' ('under-') a 'garment' ('skirt') — that's why an underskirt is a piece of clothing worn under a skirt.
No commonly confused words.