Is it ensure, insure, or assure?
A bleached, woven cotton cloth, used for dressings, bandages, and absorbent sponges.
light, open-weave fabric made of cotton when used for surgical dressings and of silk and other fibres when used for dress trimming. The name is derived from that of the Palestinian city of Gaza, where the fabric is thought to have originated. It is made either by a plain weave or by a leno weave.