Quick Definition
ἐπιδείκνυμι v. I show, prove
Strong's Definition
to exhibit (physically or mentally)
Derivation: from G1909 (ἐπί) and G1166 (δεικνύω);
KJV Usage: shew
UBS Dictionary of the Greek New Testament
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
ἐπι-δείκνυμι ; 1 aor. ἐπέδειξα ; [ pres. mid. ἐπιδείκνυμαι]; to exhibit, show, [as though for ex position or examination (Schmidt ch. 127, 5); fr. Pind., Hdt. down.]; a. to bring forth to view: τί, Mt. xxii. 19; and Lk. xx. 24 Ree.; τί τινι, Lk. xxiv. 40 RG; ἑαυτόν τινι, Lk. xvii. 14; to show i. 6. bid to look at, τί τινι, Mt. xxiv. 1; to show i. 6. furnish to be looked at, produce what may be looked at: σημεῖον, Mt. xvi. 1; Mid. with ace. of the thing, to display something belonging to one’s self: χιτῶνας, the tunics as their own, Acts ix. 39 [see Meyer]. b. to prove, demonstrate, set forth to be known and acknowledged: Heb. vi. 17; foll. by the ace. and inf. Acts xviii. 28.
Mounce Concise Greek Dictionary
ἐπιδείκνυμι epideiknymi 7x
to exhibit, Mt. 16:1; Acts 9:39; to show, Mt. 22:19; Lk. 17:14; to point out, Mt. 24:1; to demonstrate, prove, Acts 18:28; Heb. 6:17*
Abbott-Smith Greek Lexicon
ἐπι-δείκνυμι
[in LXX: Pr 12:17 (פּוּחַ hi.), Is 37:26 (בּוֹא hi.), Ep. Jer 59, II Mac 15:32, al ;]
to show, exhibit, display: c. acc et dat., Mt 16:1 22:19 24:1, Lk 17:14. Mid., to display for oneself or as one's own (but cf. Bl., § 55, 1): Ac 9:39.
to show, point out, prove: c. acc, He 6:17; c. acc et inf., Ac 18:28 (cf. MM, Exp., xiv).†
Moulton & Milligan — Vocabulary of the Greek NT
ἐπιδείκνυμι. For this verb in its primary sense of ‘‘show,”’ cf. P Flor II. 1258 (A.D. 254) ἐπιδείξων τοὺς τόπους ἔνθα ἀπετέθη, P Fay 208 (iii/iv a.D.) πολὺ ἂν φανερωτέραν τὴν ἐμαυτοῦ μεγαλοψυχίαν ἐπιδεικ[ν]ύμενος, ‘making a much more conspicuous display of my magnanimity,’’ P Oxy I. 425 (a.p. 325) ὅτ]. προθυμότατα τοὺς ἐφήβους [τ]ὰ γυμνι[κὰ] ἐπιδείκνυσθαι προσήκει. In P Ryl IT. 1751} (A.D. 168) ἐπιδεδιγμένος ἐξηγητ[ής is “exegetes-elect.”’ See also P Petr ITI. 530) §(iii/B.c. )a[A]N οὐ τυχὼν ἐπιδείξειν (Ὁ for —BetEar) [1] pds βίαν ἔχεται, ‘‘ but since he did not succeed in clearing himself he is forcibly detained ;’’ and for the meaning “‘prove,’’ as in Ac 1828, Heb 627, cf. P Eleph 17 (marriage-contract— B.C. 311-10) (= Selections, p. 3) ἐπιδειξάτω δὲ Ἡρακλείδης 6 τι ἂν ἐγκαλῆι Δημητρίαι ἐναντίον ἀνδρῶν τριῶν, ‘and let H. prove his charge against D. in the presence of three men,” P Giss I. 2? 39 (marriage-contract—B.Cc. 173) ἐὰν δέ τι Tovτῶν ἐπιδει[χθῆι] ποιῶν, P Tor I. 14 (p.c. 117-6) προσ. πρότερον εἶναι ἐπιδεικνύειν αὐτόν, ὥς ἐστιν cc υποδεικνὺς.. υἱὸς τοῦ τε Πτολεμαίου καὶ. . μητρός, and P Kyl II. 87 (early iii/A.D.) where ἐπέδειξα is used ¢e7 of a surveyor who has ‘‘ verified ’’ the condition of certain arourae of land. For the subst. see P Tor I. 1-7 (B.c. 116) μετὰ τὰς ἐπιδείξεις ταύτας ‘ hisce demonstratis’’ (Ed.), P Oxy III. 471°° (ii/A-D.) ὥστε καὶ ἐπίδειξις ἢν αὐτῶι πρὸς τοὺς δανειζομένους ἃ ἔπραττεν, “and even showed off to the borrowers what he had been doing’”’ (Edd.).
Liddell-Scott-Jones — Greek-English Lexicon
ἐπιδείκνυμι (epideiknumi) — to show/prove. ἐπιδείκ-νῡμι -νύω, ἐπιδεικνύω [Refs 3rd c.BC+], future -δείξω: aorist ἐπέδειξα, Ionic dialect [Refs 5th c.BC+]:—exhibit as a specimen, [Refs 5th c.BC+]: generally, display, exhibit, [Refs 5th c.BC+] parade it before.., [Refs 5th c.BC+]; of speeches, compositions, etc., ἐπιδειξάτω τῇ βουλῇ he shall exhibit his draft, [Refs 6th c.BC+]
2. more frequently in middle, show off or display for oneself or what is one's own, μουσικὰν ὀρθὰν ἐ. give a specimen of his article., [Refs 5th c.BC+] exhibited me naked, [Refs 5th c.BC+] showed all his army, [Refs] recall Alexander, [Refs 6th c.BC+]; σοφίαν, πονηρίαν, [Refs 5th c.BC+]
2. b. ἐπίδειξαι.. ἅττ᾽ ἐδίδασκες give a specimen of.. , [Refs 5th c.BC+], show off, make a display of one's powers, [Refs 6th c.BC+]; ὃν.. ἐθεάσασθε ἐπιδεικνύμενον giving a display (of fighting in armour), [Refs 5th c.BC+]; of a rhetorician lecturing, [Refs]; of epideictic orators, [Refs 4th c.BC+]; of a musician, [Refs 2nd c.AD+]: with participle, ἐ. [Refs 6th c.BC+].
II. show, point out, [Refs 6th c.BC+]; ἐ. αὐτήν, ἥτις [Refs]; ἐ. τὸν ἀλεκτρυόν᾽ ὡς ἐτυράννει show, prove that.., [Refs 6th c.BC+], etc.: with participle, ἐ. πάντα [Refs 5th c.BC+]; ἐ. τινὰ φονέα ὄντα show that one is a murderer, variant in [Refs 5th c.BC+] prove that one took bribes, [Refs 6th c.BC+]; ἐ. αὑτὸν φοβερὸν (i.e. [Refs 6th c.BC+]: with accusative, ἐ. ὅ τι ἂν ἐγκαλῇ [Refs 4th c.BC+] —passive, ἐπιδείκνυται αὐθέντης (i.e. ὤν) [Refs 6th c.BC+] (ἐπιδεῖξαι secl. Cobet).
II.2. middle, [Refs 6th c.BC+]