adv. [f. prec. + -LY2.]

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  † 1.  As by an efficient cause; in the relation of an efficient cause; by the operation of an agent.

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1628.  T. Spencer, Logick, 158. Created effects … are Necessary … When the next cause is determined to one … Naturally, [or] Efficiently.

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1651.  Baxter, Inf. Bapt., 291. All men believed, that faith was confirmed by signes, (that is efficiently …).

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1678.  Cudworth, Intell. Syst., 739. It is Impossible … For a thing to be Efficiently Caused, by that which hath not … a Sufficient Emanative or Productive Power.

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  2.  In an efficient manner; so as to produce an effect; with adequate success; effectively.

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1828.  Foster, in Life & Corr. (1846), II. 139. Means to act efficiently as his advocates.

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1851.  Sir F. Palgrave, Norm. & Eng., I. 403. None so efficiently protect the weak.

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1856.  Froude, Hist. Eng. (1858), I. i. 19. There is a fair evidence that the system worked efficiently and well.

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