chemisette
noun
chem·i·sette ˌshe-mi-ˈzet 
: a woman's garment
especially : one (as of lace) to fill the open front of a dress
Word History
Etymology
borrowed from French, from chemise "shirt, chemise" + -ette -ette
Note: The word is attested in Old French as chemisete in the sense "wimple"; the current sense may be a recoinage.
First Known Use
1796, in the meaning defined above