From
The Sailor's Word-Book, by Admiral W. H. Smyth, 1867:
BOOM. A long spar run out from different places in the ship, to extend or boom out the foot of a particular sail; as, jib-boom, flying jib-boom, studding-sail booms, driver or spanker boom, ringtail-boom, main-boom, square-sail boom, &c. A ship is said to come booming forwards when she comes with all the sail she can make.
DAVIT. A piece of timber or iron, with sheaves or blocks at its end, projecting over a vessel's quarter or stern, to hoist up and suspend one end of a boat.
—Fish-davit, is a beam of timber, with a roller or sheave at its end, used as a crane, whereby to hoist the flukes of the anchor to the top of the bow, without injuring the planks of the ship's side as it ascends, and called fishing the anchor; the lower end of this davit rests on the fore-chains, the upper end being properly secured by a tackle from the mast-head; to which end is hung a large block, and through it a strong rope is rove, called the fish-pendant, to the outer end of which is fitted a large hook, and to its inner end a tackle; the former is called the fish-hook, the latter the fish-tackle.
There is also a davit of a smaller kind, occasionally fixed in the long-boat, and with the assistance of a small windlass, used to weigh the anchor by the buoy-rope, &c.
FALL. ... the loose end of a tackle, or that part to which the power is applied in hoisting, and on which the people pull.