To entangle. Hence to unsnarl is to unravel, to disentangle.

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1814.  [Cutting it all round] prevents the hair from snarling.Analectic Mag., iv. 64 (July).

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1824.  Seeing her snarled hair, [he] said that her head looked as if she had six mice nests built in it, and the seventh was building.—Woodstock (Vt.) Observer, June 1: from the Boston Telegraph.

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1852.  The clay is refractory and snappish; he still trys it, but it will break, and snap, and snarl.—H. C. Kimball at the Mormon Tabernacle, Oct. 9: ‘Journal of Discourses,’ i. 161.

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1856.  I think this evening he is unsnarling some twine which he hath purchased and tangled, in order that he may be the more expert thereat when he goeth to the angle…. I have many snarled lines, and they shall be at thy service.—Knick. Mag., xlviii. 261 (Sept.).

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1861.  It would be sin, therefore, if he appears with his hair long, bushy, snarled, dirty, and hanging carelessly about his shoulders.—Brigham Young, Feb. 17: ‘Journal of Discourses,’ ix. 123.

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