underpart
UnderPart refers to a concept or item worn or situated beneath another. This can apply to various contexts. In clothing, it most commonly refers to undergarments or underwear, which are garments worn next to the skin, underneath outer clothing, for hygiene, comfort, or support. Examples include briefs, boxers, bras, and slips.
In a more general sense, "underpart" can describe any component that is located below or foundational to