In sewing and dressmaking, a ruffle, frill, or furbelow is a strip of fabric, lace or ribbon tightly gathered or pleated on one edge and applied to agarment, bedding, or other textile as a form of trimming. A ruffle without gathers or pleats may also be made by cutting a curved strip of fabric and applying the inner or shorter edge to the garment.
A deep (wide) ruffle is usually called a flounce (earlier frounce or fronce). Ruffles appeared at the draw-string necklines of full chemises in the 15th century, evolved into the separately-constructed ruff of the 16th century, and remained a fashionable form of trim, off-and-on into modern times.

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