Quick Definition
I speak out, declare
Strong's Definition
to enunciate plainly, i.e. declare
Derivation: from G575 (ἀπό) and G5350 (φθέγγομαι);
KJV Usage: say, speak forth, utterance
Thayer's Greek Lexicon
ἀποφθέγγομαι; 1 aorist ἀπεφθεγξαμην; to speak out, speak forth, pronounce, not a word of everyday speech, but one "belonging to dignified and elevated discourse, like the Latinprofari,pronuntiare; properly it has the force of to utter or declare oneself, give one's opinion (einenAusspruchthun), and is used not only of prophets (see Kypke on Act_2:4 adding from the Sept. Eze_13:9; Mic_5:12; 1Ch_25:1), but also of wise men and philosophers (Diag. Laërtius 1, 63; 73; 79; whose pointed sayings the Greeks call ἀποφθέγματα, Cicero, off. 1, 29)"; (see φθέγγομαι). Accordingly, "it is used of the utterances of the Christians, and especially Peter, on that illustrious day of Pentecost after they had been fired by the Holy Spirit, Act_2:4; Act_2:14; and also of the disclosures made by Paul to (before) king Agrippa concerning the ἀποκάλυψις κυρίου that had been given him, Act_26:25." Winer's De verb. comp. etc. Part iv., p. 16.
Mounce Concise Greek Dictionary
ἀποφθέγγομαι apophthengomai 3x
to speak out, declare, particularly solemn, weighty, or pithy sayings, Act_2:4 ; Act_2:14 ; Act_26:25
Abbott-Smith Greek Lexicon
† ἀπο -φθέγγομαι ,
[in LXX for H5012 , etc.;]
to speak forth, give utterance: Act_2:4 ; Act_2:14 ; Act_26:25 ( MM , s . v. ).†
Moulton & Milligan — Vocabulary of the Greek NT
ἀποφθεμγγομαι
ἀποφθέγγομαι [page 72]
ἀποφθέγγομαι occurs thrice in Vettius Valens, where the editor renders vaticinari : p. 73 .24 ἐν ἱεροῖς κάτοχοι γίνονται ἀποφθεγγόμενοι ἢ καὶ τῇ διανοίᾳ παραπίπτοντες , 112 .15 ἀποφθεγγομένους ἢ μανιώδεις ἢ προγνωστικοὺς ἀποτελοῦσιν , and 113 .1 μανιώδεις ἐκστατικοὺς πτωματικοὺς ἀποφθεγγομένους ἀπεργάζονται he refers to Manetho i. 237. This is an extension in malam partem of the mantic note which Winer ( ap. Grimm Thayer) finds in the verb.
Liddell-Scott — Intermediate Greek Lexicon
ἀποφθέγγομαι Dep. "to speak one's opinion plainly", Luc. :—metaph. "to ring", id=Luc.
STEPBible — Tyndale Abridged Greek Lexicon
ἀπο-φθέγγομαι
[in LXX for נָבָא, etc. ;]
to speak forth, give utterance: Act.2:4, 14 26:25 (MM, s. see).†
(AS)