Tucking

A Tuck is a fold or pleat in fabric that is sewn in place.
Small tucks, especially multiple parallel tucks, may be used to decorate clothing or household linens. When the tucks are very narrow, they are called pintucks or Pin-tucking.


 each tuck two inches wide and two inches apart, eight tucks in all, box-pleating at the bottom."

Victor and Rolf - Tucking