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.

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