To turn out, to result, to come to a head.

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1789.  I am sure it is wrong and cannot eventuate well.—Gouverneur Morris, in Sparks’s ‘Life and Writings’ (1832), i. 313. (N.E.D.)

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1821.  A rapid rise of Jones’s Falls took place, and eventuated in a flood.—Mass. Spy, Aug. 8.

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1835.  The squib had eventuated, as the Yankees say,…. in a zigzag or cracker.—M. Scott, ‘Cruise of the Midge,’ chap. xii. (N.E.D.)

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1847.  Mr. Root of Ohio did not know how the matter might eventuate.—House of Reps., Feb. 5: Cong. Globe, p. 333.

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1855.  He hopes it may “eventuate” (that is his style of language) in something practical.—D. G. Mitchell, ‘Fudge Doings,’ i. 36–7.

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1860.  A quarrel ensued which eventuated in a fight.—Richmond Enquirer, June 22, p. 4/3: from the Lynchburg Virginian.

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1860.  The battle now to be fought, at the ballot-box, must eventuate in weal or woe to the Union.—Id., Aug. 17, p. 2/1.

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