FUTTOCK
Etymology
Noun
futtock (plural futtocks)
(nautical) Any of the curved rib-like timbers that form the frame of a wooden ship.
Source: Wiktionary
Fu"ttock, n. Etym: [Prob. corrupted fr. foothook.] (Naut.)
Definition: 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. 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.
Source: Webster’s Unabridged Dictionary 1913 Edition