Apparel is a noun which primarily means clothing, usually outerwear or visible layers of clothing. It can also be used more generally, referring to anything used to decorate or cover an object.
In nautical language, apparel is the technical term for all the furnishings of a ship, such as the anchor, mast, rigging and sails. It is also the term for the piece of decorative embroidery on ecclesiastical robes, especially albs worn by religious ministers.
The word can also be used as a verb, meaning to dress, clothe or equip.
Apparel originates from the Old French verb appareiller, meaning to join or mix.