Quick Definition
διακατελέγχομαι v. I utterly refute
Strong's Definition
middle voice from 1223 and a compound of 2596 and 1651; to prove downright, i.e. confute
KJV Usage: convince
UBS Dictionary of the Greek New Testament
verb | ἐλέγχω
33.443 · Communication · Dispute, Debate
to refute, to defeat in debate to refute completely in a debate
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
δια-κατ-ελέγχομαι : impf. διακατηλεγχόμην ; 10 confute with rivalry and effort or in a contest (on this use of the prep. διά in compos. ef. Herm. ad Vig. p. 854; [al. give it here the sense of completeness ; see διά, C. 2]): with dat. of pers. [W. § 31,1f.; B. 177 (154) ]; not found exe. in Acts xviii. 28 [R. V. powerfully confuted].
Mounce Concise Greek Dictionary
διακατελέγχομαι diakatelenchomai 1x
to maintain discussion strenuously and thoroughly, to totally refute, Acts 18:28*
Abbott-Smith Greek Lexicon
*† δια-κατ-ελέγχομαι to confute completely: Ac 18:28.†
Liddell-Scott-Jones — Greek-English Lexicon
διακατελέγχομαι (diakatelegchomai) — to refute. διακατελέγχομαι, middle, confute thoroughly, τισί [NT]