Underpetticoat

Example:She attached a bustle to the underpinnings of her dress to ensure it fit properly.

Definition:A device or appliance used to hold up the back part of a woman's skirt, especially in the 19th century. It can also refer to the underpinnings that create this support.

Example:She layered foundation skirts to create the correct shape for her 19th-century gown.

Definition:A skirt or petticoat that provides the underlying support and shape for a dress, often worn in historical fashion to create a specific silhouette.

Example:She wore a pelmet to give her dress the proper fullness and shape.

Definition:An underpinner or petticoat that supports the skirt of a dress or gown to create a specific shape or silhouette, often referring to the undermost supportive layer.