sarcenet

from WordNet (r) 3.0 (2006)

sarcenet
    n 1: a fine soft silk fabric often used for linings [syn:
         {sarcenet}, {sarsenet}]

from The Collaborative International Dictionary of English v.0.48

Sarcenet \Sarce"net\, n. [OF. sarcenet; cf. LL. saracenicum
   cloth made by Saracens. See {Saracen}.]
   A species of fine thin silk fabric, used for linings, etc.
   [Written also {sarsenet}.]
   [1913 Webster]

         Thou green sarcenet flap for a sore eye. --Shak.
   [1913 Webster]