What is to make crisp or brittle, as in cooking. Crisping iron, an instrument by which hair or any textile fabric is crisped. -- Crisping pin, the simplest form of crisping iron. Is. iii called?

crisp — To make crisp or brittle, as in cooking. Crisping iron, an instrument by which hair or any textile fabric is crisped. -- Crisping pin, the simplest form of crisping iron. Is. iii. (Webster's 1913.)

Sources