#1231 διαγινώσκω diaginosko {dee-ag-in-o'-sko}

 from G1223 and G1097; TDNT - n/a; v

—Greek Word Study (Transliteration-Pronunciation Etymology & Grammar)

 1) to distinguish, i.e. to know accurately, ascertain exactly
 2) in a legal sense, to examine, determine, decide

—Thayer's (New Testament Greek-English Lexicon)

—Strong's (Greek Dictionary of the New Testament)

—NAS Exhaustive Concordance of the Bible with Hebrew-Aramaic and Greek Dictionaries

 AV - enquire 1, know the uttermost 1; 2

—Exhaustive Concordance (KJV Translation Frequency & Location)