DULEDGE PLATES. An old name for the tyre-streaks or iron plates on the circumference of the wheel of a field-piece. Duledge was also used for dowel, the wooden pin connecting the felloes. DULL'D. When said of the wind, fallen or moderated. DULLISH. The Manx term for the marine eatable leaf _dillisk_. DUMB-CHALDER. A metal cleat bolted to the back of the stern-post for one of the pintles to rest upon, to lessen both strain and friction. (_See_ PINTLES.) DUMB-CLEAT. Synonymous with _dumb-chalder_ and _thumb-cleat_. DUMB-CRAFT. Lighters, lumps, or punts, not having sails. Also, a name for the screws used for lifting a ship on a slip. DUMB-PINTLE. A peculiar rudder-strap. (_See_ PINTLES.) DUMB-SCRAPING. Scraping wet decks with blunt scrapers. DUMFOUNDER. To confuse or perplex. DUMMY. A wood frame landing-place in front of a pier. DUMP-BOLT. A short bolt driven in to the plank and timber as a partial security previous to the thorough fastenings being put in. DUMPS. Nearly synonymous with _down in the mouth_. DUN. A hill, an eminence. DUNBAR MEDLAR. A salted herring. DUNDERHEAD. A term used for the devil, as also for a stupid fellow. DUN-DIVER. A name for the goosander (_Mergus merganser_) in immature plumage. DUNES. An Anglo-Saxon word still in use, signifying mounds or ridges of drifted sands. (_See_ DOWNS.) DUN-FISH. A peculiar preparation of cod for the American market, by which it retains a dun or dark yellow colour. Dunning is extensively carried on in the spring at Portsmouth and other places in New Hampshire. DUNGAREE-DUCK. A name given to a small dried fish in Bombay. DUNGAREE-STUFF. A blue or striped cotton cloth much worn by the seafaring classes in India. DUNGIYAH. A broad-beamed flat-bottomed Arabian coaster trading between the Red Sea, Gulf of Persia, and the Malabar coast. DUN-HEAD. In east-country barges the after-planking which forms the cabin. DUNKIRKS. The well-known name for pirates who sailed out of Dunkirk. DUNLIN. The name of a species of sand-piper (_Tringa cinclus_). DUNN, OR DUIN. A Gaelic word for a fort, a hill, a heap, or a knoll. DUNNAGE. Loose wood or other substances, as horns, rattan, coir, &c., to stow amongst casks and other cargo to prevent their motion. A vessel dunnages below the dry cargo to keep it from bilge-water. DUNNAGE BATTENS. An extra floor in a merchantman to preserve the cargo from wet in the event of leakage. They are also used in magazines and sail-rooms so as to form a vacant space beneath the powder-barrels and ceiling. DUNNAGED. Goods or packages secured with dunnage. DUNNAGE GRATINGS. Express gratings placed on a steamer's deck to place cargo upon, serving as dunnage. DUNTER. A northern designation of the porpoise. DUNTER-GOOSE. A name in the Orkneys for the _Somateria mollissima_, or eider-duck. DUR-MAST. An inferior oak of more rapid growth than the true English.