godet

詳細解釋：

go.det

n.（名詞）
A triangular piece of fabric usually set into the hem of a garment to add fullness.
三角固邊：一塊三角形的布料，通常縫製於服裝的折邊以增加服裝的充實度

來源：
French [goblet, godet]
French [goblet, godet]
from Middle Dutch codde [cylindrical piece of wood]
from Middle Dutch codde [cylindrical piece of wood]