Lexical Definition

‎ἐξελέγχω‎ exelénchō (ex-el-eng'-kho) to convict ^G:V
from ‎ἐκ‎ and ‎ἐλέγχω‎

convince.

• to convict fully, i.e. (by implication) to punish

Abbott-Smith

ἐξ-ελέγχω [in LXX Pr 30:6, Mi 4:3, Is 2:4 (יָכַח hi.), Wi 12:17, IV Mac 2:12 * ;]
to convict: Ju 15, Rec. (for ἐλέγχω, WH, q.v.).†

Abbott-Smith References

Liddell-Scott-Jones

ἐξελέγχω-έγχω,

strengthened for ἐλέγχω, convict, confute, refute, [Refs 5th c.BC+]; ἐν τῷ δήμῳ ἐ. [τινά] [Refs 4th c.BC+]:—passive, ἐπ᾽ αἰσχραῖς αἰτίαις ἐξελέγχωήλεγκται [ἐξελέγχωεγχόμενος περί τινος 5th-6th c.BC: Plato Philosophus “Hp.Ma.” 304d; ὑπ᾽ ἐμοῦ ἐξελέγχωεγχθήσονται ἔργῳ [prev. author] “Ap.” 17b. ">Refs 5th c.BC+]

__2 with double accusative person et of things, refute one in a point,[Refs] — passive, τοσοῦτον.. ἡλίκον οὗτος νῦν ἐξελέγχωήλεγκται has been convicted of.., [Refs 4th c.BC+]; οὐ τοῦτό γ᾽ ἐξελέγχωέγχομαι I am not to blame in this, [Refs 5th c.BC+]
__3 with predicate added in participle, convict one of being.., ἐ. τινὰ ἀδύνατον ὄντα [Refs 5th c.BC+]:—passive, ἵν᾽ ἐξελέγχωέγχοισθε πονηρευόμενοι [ἐξελέγχωέγχεται συμβεβουλευκώς 4th c.BC: Demosthenes Orator 19.5, etc. ">Refs 5th c.BC+]
__II put to the proof, bring to the test, ὁ ἐξελέγχωέγχων.. ἀλάθειαν χρόνος [Refs 5th c.BC+]; in a court of justice, [Refs 5th c.BC+]; ἐ. τὴν τύχην, τὰς ἐλπίδας, [Refs 2nd c.BC+] — passive, πάντες ἦσαν ἐξελέγχωηλεγμένοι all had had their sentiments well ascertained, [Refs 4th c.BC+]; ἃ δ᾽ ἡ φύσις ἀεὶ ἐβούλετο, ἐξηλέγχθη ἐς τὸ ἀληθές was fully proved to be true, [ἐξελέγχωέγχεσθαι πυρί 4th-3rd c.BC: Menander Comicus 691. ">Refs 5th c.BC+]
__II.2 in Medicine texts, find out one's weak points, [Refs 2nd c.AD+]:— passive, [Refs]
__III compute, χαλκὸν μυρίον [Refs 5th c.BC+]
__IV establish a claim to, ὀγδοήκοντα τάλαντα [Refs 4th c.BC+]