Strong's Concordance

Original word: διαγινώσκω
Transliteration: diaginóskó
Definition (short): decide
Definition (full): to distinguish, to determine

NAS Exhaustive Concordance

Word Origin: from dia and ginóskó
Definition: to distinguish, to determine
NASB Translation: decide (1), determine (1).
NAS Exhaustive Concordance of the Bible with Hebrew-Aramaic and Greek Dictionaries.
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Strong's Exhaustive Concordance

From dia and ginosko; to know thoroughly, i.e. Ascertain exactly -- (would) enquire, know the uttermost.

see GREEK dia

see GREEK ginosko

KJV: Now therefore ye with the council signify to the chief captain that he bring him down unto you to morrow, as though ye would inquire something more perfectly concerning him: and we, or ever he come near, are ready to kill him.
NASB: "Now therefore, you and the Council notify the commander to bring him down to you, as though you were going to determine his case by a more thorough investigation; and we for our part are ready to slay him before he comes near the place."
KJV: And when Felix heard these things, having more perfect knowledge of that way, he deferred them, and said, When Lysias the chief captain shall come down, I will know the uttermost of your matter.
NASB: But Felix, having a more exact knowledge about the Way, put them off, saying, "When Lysias the commander comes down, I will decide your case."