undergarment

/ˈʌndəˌɡɑːmənt/

Etymology

From under- + garment.

noun

Any garment worn underneath others, especially one worn next to the skin; an item of underwear.“Richard DeLongpre: Are you okay, my boy angel? Allen Gregory DeLongpre: I have a broken heart. And undergarments filled with my own unruly waste.”
Temple garments worn by the followers of the Church of Jesus Christ of Latter-day Saints.