codpiece
/ˈkɒdpiːs/noun
- a pouch, especially a conspicuous and decorative one, attached to a man's breeches or close-fitting hose to cover the genitals, worn in the 15th and 16th centuries（15,16世纪男子短马裤或紧身裤前面盖住生殖器的）遮阴袋。
词源
from earlier cod 'scrotum' （from Old English codd 'bag, pod'） + PIECE.