Cotehardie
In modern usage, the term Cotehardie is fairly broad, and can refer to several different garments. For possible definitions, scroll down to Cotehardie in the following external link: Marc Carlson's Glossary (http://www.personal.utulsa.edu/~marc-carlson/cloth/glossary.html)
Modern costume usage, including many popular costume books, typically apply the term "cotehardie" broadly to many fitted female gowns of the 14th and 15th centuries.
A simple cotehardie is relatively easy to sew and can be an excellent piece of feast garb.