Strong’s Greek
G5033 — tachista
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
τάχιστα
tachista — pronounced takh'-is-tah
neuter plural of the superlative of 5036 (as adverb); most quickly, i.e. (with 5613 prefixed) as soon as possible:--+ with all speed. see GREEK for 5036 see GREEK for 5613
1 occurrence in the KJV.
Acts 17:15
And they that conducted Paul brought him unto Athens: and receiving a commandment unto Silas and Timotheus for to come to him with all speed, they departed.