[f. JAR v. + -ING2.] That jars.

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  1.  Sounding with harsh or rough vibration; grating; hence, inharmonious, discordant, out of tune; grating upon the ear or (transf.) the feelings or nerves.

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1552.  Huloet, Iarrynge or discordyng, discrepans, dissonus [etc.].

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a. 1591.  H. Smith, Serm. (1637), 451. A note above Ela is a jarring note, and alwayes makes a discord in the harmony.

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1626.  Bacon, Sylva, § 169. A Bell, if it haue a Rift in it,… giueth a Hoarse and Iarring Sound.

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1667.  Milton, P. L., II. 880. Op’n flie With impetuous recoile and jarring sound, Th’ infernal dores.

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1773.  Phil. Trans., LXIII. 283. The wild note … of the bulfinch … is a most jarring and disagreeable noise.

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1803.  T. Beddoes, Hygëia, III. ix. 201. Creaking wheels, jarring windows.

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  2.  Striking with a concussion; causing vibration.

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1665.  R. Hooke, Microgr., vi. 13. Another Instance of the strange loosening nature of a violent jarring Motion.

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1716.  Gay, Trivia, III. 163 (J.).

        Whene’er I pass, their Poles unseen below,
Make my Knee tremble with the jarring Blow.

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1830.  Herschel, Stud. Nat. Phil., 238. The jarring effect of a blow.

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  3.  Discordant, conflicting, clashing.

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1661.  Boyle, Style of Script. (1675), 95. Writings, alledg’d … to countenance their jarring opinions.

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1762.  Falconer, Shipwr., Proem 1. While jarring int’rests wake the world to arms.

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1849.  Macaulay, Hist. Eng., ii. I. 226. Their jarring inclinations and mutual concessions gave to the whole administration a strangely capricious character.

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  4.  Quarrelling, disputing, wrangling.

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1628.  Ford, Lover’s Mel., II. i. A young lady contracted to a noble gentleman … being hindered by their jarring parents, stole from her home.

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1780.  Cowper, Nightingale & Glowworm, 27. Hence jarring sectaries may learn Their real interest to discern.

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a. 1832.  Mackintosh, Wks. (1846), II. 474. The suspicion and jealousy of jarring parties.

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  Hence Jarringly adv., in a jarring manner. Jarringness, the quality of being jarring.

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1583.  Babington, Commandm., i. (1590), 34. That they [the strings of an instrument] sounde iarringlie and out of tune.

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1832.  Lytton, Eugene A., I. x. The answer sounded jarringly on the irritated nerves of the disappointed rival.

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1865.  Pall Mall Gaz., 22 April, 11/2. Self-complacency which implies jarringness to others, and pococurantism.

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