apron
n. countablen. a piece of clothing you wear over your clothes to keep them clean. You usually tie it around your waist while cooking or working.
n. a protective garment worn over the front of the body, typically tied at the waist, to shield clothing from dirt or damage.
She wears an apron when she bakes cookies.
The chef tied his white apron tightly before starting the busy lunch service.
The traditional leather apron offers superior protection against sparks and heat in a blacksmith's workshop.
Rebracketing of napron (a napron → an apron), from Middle English naperoun, napron, apron, from Old French napperon, diminutive of nappe (“tablecloth”), from Latin mappa (“napkin”). For other similar cases of rebracketing, see adder, daffodil, newt, nickname, orange, trickle, umpire.