Ganch

from The Collaborative International Dictionary of English v.0.48

Ganch \Ganch\, v. t. [Cf. F. ganche, n., also Sp. & Pg. gancho
   hook, It. gancio.]
   To drop from a high place upon sharp stakes or hooks, as the
   Turks dropped malefactors, by way of punishment.
   [1913 Webster]

         Ganching, which is to let fall from on high upon hooks,
         and there to hang until they die.        --Sandys.
   [1913 Webster]