%futtock%

n. [ Prob. corrupted fr. foothook. ] (Naut.) One of the crooked timbers which are scarfed together to form the lower part of the compound rib of a vessel; one of the crooked transverse timbers passing across and over the keel. [ 1913 Webster ]

Futtock plates (Naut.), plates of iron to which the dead-eyes of the topmast rigging are secured. --
Futtock shrouds, short iron shrouds leading from the upper part of the lower mast or of the main shrouds to the edge of the top, or through it, and connecting the topmast rigging with the lower mast. Totten. [ 1913 Webster ]