adv. [f. prec. + -LY2.] In an efficacious manner; effectively.

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1647.  Clarendon, Hist. Reb. (1703), VI. II. 152. No man deliver’d himself more … efficaciously with the hearers.

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1725.  Bradley, Fam. Dict., II. s.v. Watering, They … act efficatiously, and yield what is expected from them.

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1836.  Sir H. Taylor, Statesman, xii. 84. Objects on which men are … efficaciously employed.

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1879.  Chr. Rossetti, Seek & F., 181.

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