smocks

Refers to loose garments, generally garments that cover the upper body, the term being derived from an old English word for shirt or chemise. It can refer to loose, outer garments designed to protect more valuable attire from soil or paint. It can also refer to loose undergarments, which were often gathered or embroidered at the neck and sleeves and were originally intended to protect more valuable outer garments from perspiration and other bodily soil and fluids.