stomacher

noun4

1. •
   A similar item of mail worn over and protecting the stomach.
2. •
   (historical) An ornamental cloth, often embellished with embroidery or jewelry, worn over the chest by women beneath their bodices or by men and women as the central part of an open shirt, blouse, or jacket.

   • Stomacher brooch of brilliants and fine oriental pearls. — 1851
3. •
   A blow to the stomach.
4. •
   (no longer used) A type of men's waistcoat.