Definition of "gaffsail" [gaffsail]

• A quadrilateral fore-and-aft sail suspended from a gaff (noun)

WordNet. Princeton University. 2010.

• "Her foremast carried an immense lateen sail, her pole mainmast three square sails that could be dropped to the main deck for reefing, and her mizzen a gaffsail, with a square topsail above it."
• "Her gaffsail boom was lengthened by a flagstaff, so that on festive occasions (and such it appeared Hadelin considered our departure to be) an overwrought banner could be hung over the water."