Nainsook: A soft, fine, light cotton fabric made from combed yarns, in plain weave, often mercerized, similar to Batiste in the piece. The construction and the yarns used in nainsook is the same as that of lawn. A lawn fabric which is not given the starch finish to make it crisp is actually nainsook or English nainsook. In case of French nainsook it may be slightly starched and calendared. Once a popular dress fabric but now mainly used for lingerie and baby clothes or for summer dresses and curtains.