after-sails

from The Collaborative International Dictionary of English v.0.48

After-sails \Aft"er-sails`\ ([a^]f"t[~e]r*s[=a]lz`), n. pl.
   (Naut.)
   The sails on the mizzenmast, or on the stays between the
   mainmast and mizzenmast. --Totten.
   [1913 Webster]