duvetyn
noun
duve·tyn ˈdü-və-ˌtēn 
ˈdyü-,
ˈdəv-ˌtēn : a smooth lustrous velvety fabric
Word History
Etymology
French duvetine, from duvet down, from Middle French, alteration of *dumet, diminutive of Old French dun, dum down, from Old Norse dūnn — more at down
First Known Use
1913, in the meaning defined above