Diaper (noun)

1. A garment worn by a baby or young child to catch any excrement and absorb urine.
2. A piece of cloth or other absorbent material used to protect clothing or furniture from spills or dirt.

Origin:

Late middle english: from old french diaspre, via latin from greek dia "across" + aspis "shield".

Examples:

1. She changed her baby's diaper.
2. He wore a diaper as he couldn't control his bladder.
3. The diapers were disposable and convenient.
4. She used a diaper as a bib to protect his clothes.
5. The furniture was covered with a diaper to protect it from scratches.