Answer:
Diaper refers to a type of decorative pattern or motif commonly found on upholstered fabrics. It typically consists of a repeated diamond or lozenge-shaped design. The term originated from the resemblance of the pattern to the cloth diapers traditionally used for babies. Diaper patterns can be seen on various furniture pieces such as chairs, sofas, and cushions, adding visual interest and texture to the upholstery. Usually small design in regular repeats, spaced to form a diagonal pattern.