adv. [f. prec. + -LY2.] Roughly; violently; tumultuously; with rough and superabundant energy.

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a. 1550.  Christis Kirk Gr., xii. The buff so boisterously abaist him, That he to the eard dusht doun.

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1595.  Shaks., John, III. iv. 136. A Scepter snatch’d with an vnruly hand, Must be as boysterously maintain’d as gain’d.

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1670.  Milton, Hist. Eng., Wks. 1738, II. 118. Godwin and his Sons did many things boistrously and violently.

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1845.  Ld. Campbell, Chancellors (1857), V. cxi. 201. Respectable politicians have seen reason … to join those whom they have been accustomed boisterously to assail.

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1871.  M. Collins, Mrq. & Merch., I. ii. 66. With Big Dog boisterously bounding from side to side.

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