The Collaborative International Dictionary of English v.0.48:

Clove \Clove\, imp. of Cleave.
   Cleft. --Spenser.
   [1913 Webster]

   Clove hitch (Naut.) See under Hitch.

   Clove hook (Naut.), an iron two-part hook, with jaws
      overlapping, used in bending chain sheets to the clews of
      sails; -- called also clip hook. --Knight.
      [1913 Webster]

WordNet (r) 3.0 (2006):

clove hitch
    n 1: a knot used to fasten a line temporarily to a post or spar