jump (jŭmp), n. [Cf. F. jupe a long petticoat, a skirt. Cf. juppon.] (a) A kind of loose jacket for men. (b) pl. A bodice worn instead of stays by women in the 18th century.
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Jump (?), v. t. 1. To pass over by means of a spring or leap; to overleap; as, to jump a stream.
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2. To cause to jump; as, he jumped his horse across the ditch.
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3. To expose to danger; to risk; to hazard. [Obs.]
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To jump a body with a dangerous physic. Shak.
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4. (Smithwork) (a) To join by a butt weld. (b) To thicken or enlarge by endwise blows; to upset.
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5. (Quarrying) To bore with a jumper.
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To jump a claim, to enter upon and take possession of land to which another has acquired a claim by prior entry and occupation. [Western U. S. & Australia] See Claim, n., 3. -- To jump one's bail, to abscond while at liberty under bail bonds. [Slang, U. S.] -- To jump the gun, to begin to run (in a footrace) before the starting gun has fired; hence, (fig.) to begin any activity before the designated starting time.
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Jump, a. Nice; exact; matched; fitting; precise. [Obs.] “Jump names.” B. Jonson.
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jump (jŭmp), n. same as jump-start, n..
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