Middy is a term used to describe a type of BLOUSE, which is a loose-fitting garment that typically has short sleeves and buttons down the front. It is often made of lightweight fabrics such as cotton or linen and is usually worn tucked into a skirt or trousers. The term middy is derived from the French word 'middie, ' which means 'MIDDLE.' The middy BLOUSE was popularized in the late 19th century and is still a popular style today.