3. To act or produce effect on the mind; to exert moral power or influence. "The virtues of private persons operate but on a few." (Atterbury) "A plain, convincing reason operates on the mind both of a learned and ignorant hearer as long as they live." (Swift)
Origin: L. Operatus, p.p. Of operari to work, fr. Opus, operis, work, labour; akin to Skr. Apas, and also to G. Uben to exercise, OHG. Uoben, Icel. Fa. Cf. Inure, Manoeuvre, Ure.
(01 Mar 1998)
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