The Collaborative International Dictionary of English v.0.48:

Sarsenet \Sarse"net\, n.
   See Sarcenet.
   [1913 Webster]

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]

WordNet (r) 3.0 (2006):

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