Undershorts (noun)

1. A short pair of underpants, worn by men and boys.
2. A type of underwear worn by men and boys that covers the lower body and is worn under other clothing.

Origin:

Early 20th century: from under- + shorts.

Examples:

1. He wears undershorts every day under his pants.
2. The undershorts were made of a comfortable cotton material.
3. The undershorts were designed to provide support and comfort.
4. He put on a fresh pair of undershorts before putting on his pants.
5. The undershorts were designed to prevent chafing during sports and physical activities.