The pouf is a hairstyle derived from 18th-century France. Queen Ma. Antoinette made it popular. She 1st sporting it in 1774, when she attended her husband Louis XVI's coronation. The famed hairdresser of the day Leonard Autie, created these diverse styles. It quickly became widespread amongst noble and upper-class women in France during the time. It was highly creative and artistic and women could literally wear their moods through strategically placed decorations & ornaments.
A pleat is a type of fold formed by doubling fabric back upon itself and securing it in place. It is commonly used in fabric and upholstery to gather a wide piece of fabric into a narrow circumference.