sarrasin

from The Collaborative International Dictionary of English v.0.48

Sarrasin \Sar"ra*sin\, Sarrasine \Sar"ra*sine\, n. [F.
   sarrasine, LL. saracina. See {Saracen}.] (Fort.)
   A portcullis, or herse. [Written also {sarasin}.]
   [1913 Webster]