#1246 διακατελέγχομαι diakatelegchomai {dee-ak-at-el-eng'-khom-ahee}

 middle voice from G1223 and a compound of G2596 and G1651; TDNT - n/a; v

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

 1) to confute with rivalry and effort or in a contest

—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 - convince 1; 1

—Exhaustive Concordance (KJV Translation Frequency & Location)