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neuter plural of the superlative of ταχύς (as adverb); most quickly, i.e. (with ὡς prefixed) as soon as possible: + with all speed.
(neuter plural of the superlative ταχιστος, from ταχύς), adverb (from Homer down), very quickly: ὡς τάχιστα, as quickly as possible (A. V. with all speed), Acts 17:15.
τάχιστα: superl. к ταχύ I.