grapnel

Short definition from Wiktionary

Noun

1. 1
   A small anchor, having more than two flukes, used for anchoring a small vessel.
2. 2
   A device with a multiple hook at one end and attached to a rope, which is thrown or hooked over a firm mooring to secure an object attached to the other end of the rope.
3. 3
   A grappling iron.

Verb

1. 1
   To connect (ships) with a grapnel.