from The Century Dictionary.
- noun Nautical, the uppermost sail ordinarily carried on the mainmast, next above the topgallantsail, and used only in a light breeze.
Sorry, no etymologies found.
These braces come down to the ship's sides, or to the heads of the masts fore and aft of those on which the yard is swung; all the mizzen-braces working on the mainmast; the maintopgallant, mainroyal and skysail braces working on the mizzenmast; and the foretopgallant and foreroyal braces working on the mainmast, as is clearly shown in our illustration.
Late in the afternoon, the ship being under all plain sail, on the port tack, heading due west, the voice of the lookout on the mainroyal-yard floated down to the deck in that hail which is always thrilling at sea, and was doubly so in this instance, --
And so, by doing the seamanly work themselves and putting ropes into the hands of the crew, the mate and the two boatswains got sail on the ship, even to the jib-topsail and the mainroyal staysail.
The brig came down the wind like a graceful bird -- a splendid craft, black, shiny, and shipshape, five guns to a side, brass-bound officers on her quarter-deck, blue-jackets darting about her white deck and up aloft, a homeward-bound pennant trailing from her main-truck, and at her gaff-end a British ensign as large as her mainroyal.