from The Century Dictionary.

  • noun A fore-and-aft mainsail, the foot of which is extended by a boom.


Sorry, no etymologies found.


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  • When the brig was close under the first battery, the enemy opened their fire at her; but so near was she to the cliffs, that they could not sufficiently depress their guns to touch her decks, their lowest shot going through the boom-mainsail, four or five feet above the hammock-netting.

    Our Sailors Gallant Deeds of the British Navy during Victoria's Reign


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