[f. JUMP v. + -ER1.] One who or that which jumps.

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  1.  A man or animal that jumps or leaps.

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1611.  Cotgr., Sautier, a leaper, iumper, skipper.

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1812.  Sporting Mag., XXXIX. 15. Almost as great a jumper as himself.

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1886.  Coventry & Watson, Steeple-chasing, iv. However much a horse may answer to the description of a natural jumper, he has to learn to be clever.

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1900.  Westm. Gaz., 4 May, 8/2. The … duties of the ‘’bus-jumper’—the ghostlike functionary who appears on the top of a ’bus and demands a sight of your ticket.

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  2.  A name applied to the members of a body of Methodists that arose in Wales about the middle of the eighteenth century, who used to jump and dance as a part of religious worship; applied also to more recent sects following similar practices.

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1774.  in Sidney, Rowl. Hill (1834), 101. Nothing … made him so angry as the enthusiasm of the jumpers, whom he called the caricaturists of religion.

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1802.  Public Characters, 552. The Jumpers in Wales have started up as a sect within the last half century.

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1852.  M. W. Savage, R. Medlicott, III. xii. (D.). Jenny [was] a Welshwoman; her rude forefathers were goat-herds on week-days, and Jumpers on Sundays.

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1876.  C. M. Davies, Unorth. Lond. The Walworth Jumpers.

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  3.  An animal, esp. an insect (as a flea) or insect-larva, characterized by jumping: cf. HOPPER1 2.

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1785.  Gentl. Mag., LV. I. 265. A very remarkable little animal…. It is the Mus Jaculus or Sauteur; and in English may be called the Jumper.

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1789.  G. White, Selborne, xxxiv. 90. These eggs produce maggots called jumpers.

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1834.  McMurtrie, Cuvier’s Anim. Kingd., 391. The Jumpers or the Anisopoda.

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  4.  One who jumps a claim. See JUMP v. 9 b.

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1855.  F. S. Marryat, Mountains & Molehills, 240. My claim being carefully measured … and found to be correct, the ‘jumper’ would be ordered to confine himself to his own territory.

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1890.  Gunter, Miss Nobody, vii. 86. Bob, the hero who saved the Baby Mine from the jumpers for us.

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  5.  One who causes to jump, in quot., a flogger.

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1842.  Orderson, Creoleana, ix. 96. This … brute … ordered the unhappy Rachael into the hands of the ‘Jumper.’

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  6.  Applied to various tools or contrivances having a jumping motion. a. Quarrying. A heavy drill worked either by hand or by means of a hammer, used in making blasting-holes in rock, etc. Also attrib. b. A spring or click controlling the star-wheel of a repeating clock. c. A form of plowshare for rough soil, or for soil filled with roots (U.S.). d. Telegraphy. A wire used to cut out an instrument or part of a circuit, or to close temporarily a gap in a circuit.

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  a.  1769.  Smeaton, in Brand, Hist. Newcastle (1789), II. 586. Eye-bolts fixed in holes bored [in stones] with a jumper.

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1828.  Craven Dial., Jumper, a miner’s augur, used in making holes for the reception of gun-powder, for blasting or blowing up rocks.

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1839–47.  J. S. Macaulay, Field Fortif. (1851), 213. The miner holds the jumper in both hands, raises it, and lets it fall in the hole, turning it continually. Ibid. When the stone is of a very hard description, it is usual to pour water occasionally into the jumper-hole.

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  b.  1850.  E. B. Denison, Clock & Watch Making, § 92. 125. The thing called the jumper … will … drive the ray still farther forward…. The jumper also acts as a click to keep the star wheel steady.

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1884.  F. J. Britten, Watch & Clockm., 251. The pin in moving the star wheel presses back the click or ‘jumper.’

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  7.  U.S. A rough kind of sledge: see quot. 1893.

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1823.  J. F. Cooper, Pioneers, xxix. (1869), 126/1. They frequently make these jumpers to convey their game home.

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1893.  C. G. Leland, Mem., II. 81. A jumper,… the roughest form of a sledge, consisting of two saplings with the ends turned up, fastened by cross-pieces.

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1898.  R. A. Guild, in New Eng. Mag., June, 455/1. My pulse quickens as I recall the glorious times with our ‘jumper,’ and the hair-breadth escapes from posts and barberry bushes, in our swift descent upon the ice.

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  8.  Naut. a. A preventer-rope made fast so as to prevent a yard, mast, etc., from jumping or springing up in rough weather. Also attrib. b. Jolly jumpers, sails above the moon-rakers (Smyth, Sailor’s Word-bk., 1867).

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1856.  Kane, Arct. Expl., I. viii. 87. By a complication of purchases, jumpers, and shoves, we started the brig.

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1882.  Nares, Seamanship (ed. 6), 30. Topping lift for spritsail gaff and jumper. Ibid., 51. The jumper is rove through a clump block on the cutwater, and is set up with a purchase in the head.

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1900.  Westm. Gaz., 14 Feb., 10/2. These enable it [the compass] to be hoisted aloft on to the jumper stay, and it is in this way removed from all influences of the magnetism … caused by the ship’s iron.

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  Hence Jumper v.2 trans., to bore (a hole) with a jumper (sense 6 a). Jumperism, the principles of the Jumpers. Jumpery, practice or action of jumping; humorously applied to a dance.

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1825.  Blackw. Mag., XVII. 339. A hole … is jumpered in the rock.

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1800.  J. Whitaker, Lett., in Polwhele, Trad. & Recoll. (1826), II. 524. On Methodistical Jumpers or Jumperism.

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1876.  C. M. Davies, Unorth. Lond., 64. Whether Jumperism is ceasing to merit its distinctive appellation, I cannot … say.

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1882.  Besant, All Sorts, vi. 53. Such dances as the bolero, the tarantellà, and other national jumperies.

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