From 1710 until 1850 the development of the boomkin in English sailing vessels generally proceeded thus:

Also, an iron band was now introduced which could hold eyelets for the boomkin shrouds, usually three in number.

Nor a xebec; for although you may think xebecs have a bowsprit, it is really only a sorts of woolded boomkin.' '

On modern sailing yachts, the term boomkin is used to refer to a spar extending aft from the stern of the boat which has a long main boom.

Such as a mast,boom,gaff,yard,bowsprit,prod,boomkin,pole,dolphin striker .

A boomkin, sometimes referred to as a bumkin or as a bumpkin, consists of an exceptionally strong and usually wooden spar that projects forwards and often (though not always) downwards over the main head-rail of a traditional western sailing ship, one on either side of the vessel (not to be confused with cathead).