society > travel > travel by water > vessel, ship, or boat > equipment of vessel > masts, rigging, or sails > spar > [noun] > mast > fittings on mast for affixing rigging
1874 E. H. Knight I. 931/2 Futtock-hoop.., a hoop encircling the mast at a point below the head, and serving for the attachment of the shackles of the futtock-shrouds.