Quick Definition
I put out or expose a child, set forth, explain
Strong's Definition
to expose; figuratively, to declare
Derivation: from G1537 (ἐκ) and G5087 (τίθημι);
KJV Usage: cast out, expound
Thayer's Greek Lexicon
ἐκτίθημι: 1 aorist passive participle ἐκτεθεις; middle, imperfect ἐξετιθεμην; 2 aorist ἐξεθέμην; to place or set out, expose;
1. properly: an infant, Act_7:21; (Wis_18:5; (Herodotus 1, 112); Aristophanes nub. 531; Aelian v. h. 2, 7; Lucian, de sacrif. 5, and often).
2. Middle metaphorically, to set forth, declare, expound: Act_11:4; τί, Act_18:26; Act_28:23; ((Aristotle, passim); Diodorus 12, 18; Josephus, Antiquities 1, 12, 2; Athen. 7, p. 278 d.; others).
Mounce Concise Greek Dictionary
ἐκτίθημι ektithēmi 4x
pr. to place outside, put forth; to expose an infant, Act_7:21 ; met. to set forth, declare, explain, Act_11:4 ; Act_18:26 ; Act_28:23
Abbott-Smith Greek Lexicon
ἐκ -τίθημι ,
[in LXX for H5414 ni ., etc.;]
to set out, expose: Act_7:21 , Metaph ., to set forth, expound: Act_11:4 ; Act_28:23 ; c . acc rei , Act_18:26 .†
Moulton & Milligan — Vocabulary of the Greek NT
ἐκτίθημι [page 199]
ἐκτίθημι is used = expose an infant, as in Act_7:21 (cf. .19 ἔκθετα ), in BGU IV. 1104 .24 (B.C. 8) τὸ βρέφος ἐκτίθεσθαι . The verb is common = post up a notice etc., e.g. P Hib I. 29 .9 ( c. B.C. 265) ὁ δ̣ὲ τελώνης το̣[ῦτο τὸ ] γραμματ [εῖον ] γράψ̣ας εἰς λεύκωμα μ [ε ]γάλο̣ι̣ς γράμ̣μ̣α̣σ̣ι̣ν (cf. Gal_6:11 ) ἐκτιθέτ̣[ω πρὸ ] τοῦ ἀ̣γ̣ο̣ρ̣α̣ν̣[ομί ]ου ἑκάστης ἡ [μ ]έρας , and the tax-farmer shall write this document upon a notice board in large letters and expose it in front of the agoranomus-office every day (Edd.), P Par 63 .65 (B.C. 164) (= P Petr III. p. 24) ὥπως τοῦτο μὲν ἔν τε ταῖς μητροπόλεσιν ἐκ [τ ]εθῆι , that this be posted up in the chief towns : cf. ib. 49 .3 (B.C. 164 158) (= Witkowski, 2 p. 69) τοσ̣[αύ ]τ̣ην ἐμαυτοῦ ἐλευθερ [ιότητ ]α [ο ]ὐ̣ βαναυσίαν ἐκτέθει [κ ]α πᾶσιν ἀνθρώποις , and with the corresponding subst. (as in Est_8:14 ; Est_8:17 A) P Petr II. 13 (18 b ) .10 (B.C. 258 3) ἔκθες οὖν ἔκθεμα καὶ προκήρυξον , issue a public notice and have it cried. The subst. is also found in P Flor I. 99 .1 (i/ii A.D.) (= Selections , p. 71). See also Wilcken Ostr i. p. 527 f. For the metaphorical usage (as in Act_11:4 ) cf. P Hib I. 27 .24 (B.C. 301 240) πᾶσαν οὖν τὴν ἀλήθει [αν ] ἡμῖν ἐξετίθι , he expounded to me the whole truth (Edd.). See also s.v. ἔκθετος .
Liddell-Scott — Intermediate Greek Lexicon
ἐκτίθημι fut. -θήσω "to set out, place outside", Od. : "to expose" on a desert island or "to expose" a new-born child, Hdt. , attic:—Mid. "to export", Plut. "to set up in public, exhibit publicly", νόμους Dem.
STEPBible — Tyndale Abridged Greek Lexicon
ἐκ-τίθημι
[in LXX for נָתַן ni., etc. ;]
to set out, expose: Act.7:21, Metaphorical, to set forth, expound: Act.11:4 28:23; with accusative of thing(s), Act.18:26.†
(AS)