Quick Definition
ὁμοθυμαδόν Adv with one mind, unanimously
Strong's Definition
adverb from a compound of the base of 3674 and 2372; unanimously
KJV Usage: with one accord (mind)
UBS Dictionary of the Greek New Testament
advb. | ὁμοιόω + θυμόομαι
31.23 · Hold a View, Believe, Trust · Agree, Consent
with one mind, by common consent, unanimously pertaining to mutual consent or agreement In a number of languages with one mind (ACT 1:14) would need to be rendered as ‘prayed for the same things’ or ‘said the same in their prayers.’
In ACT 15:25 the expression ‘we unanimously agreed’ may also be rendered as ‘we were in agreement that.’
ACT 1:14 · ACT 2:46 · ACT 4:24 · ACT 5:12 · ACT 7:57 · ACT 8:6 · ACT 12:20 · ACT 15:25 · ACT 18:12 · ACT 19:29 · ROM 15:6
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
ὁμοθυμαδόν (fr. ὁμόθυμος, and this fr. 6uds and θυμός ; on advs. in -δόν [chiefly derived fr. nouns, and designating form or structure] as γνωμηδόν, ῥοιζηδόν, etc., cf. Bitm. Ausf. Spr. ii. p. 452), with one mind, of one accord, (Vulg. unanimiter [etc.]): Ro. xv. 6; Acts i. 14; ii. 46; iv. 24; Vii. 57; viii. 6; xii. 20; xv. 25; xviii. 12; xix. 29, and RG in ii. 1, (Arstph., Xen., Dem., Philo, Joseph., Hdian., Sept. Lam. ii.8; Job xvii. 16; Num. xxiv. 24, etc.) ; with ἅπαντες [LT WH πάντες] (Arstph. pax 484, and often in elass. Grk.), Acts v. 12 [ef. ii. 1 above].
Mounce Concise Greek Dictionary
ὁμοθυμαδόν homothumadon 11x
with one mind, with one accord, unanimously, Acts 1:14; Rom. 15:6; together, at once, at the same time, Acts 2:1, 46; 4:24
Abbott-Smith Greek Lexicon
ὁμοθυμαδόν
(< ὁμός, θυμός), [in LXX for יַחַד (freq. in Jb), Wi 10:20 18:5, 12, al.;]
with one mind, with one accord: Ac 1:14 2:46 4:24 5:12 7:57 8:6 12:20 15:25 18:12 19:29, Ro 15:6 (Hatch, Essays, 63 f., argues that the un-cl. sense together, which is found in Jb 3:18 38:33, Nu 24:24, Wi 18:5, 12 (but not 10:20), al., should be attached to the NT instances, but v. Abbott, Essays, 96; MM, xviii).†
Moulton & Milligan — Vocabulary of the Greek NT
ὁμοθυμαδόν. The sense wnanimzter, and not merely ‘‘together” to which Hatch (Zssays, p. 63f.) would limit this word in the NT as in the Greek versions of the OT, is supported by P Tebt I. 408 (B.c. 117) (= Selections, p. 28) σαφέστερον μετειληφὼς τοὺς ἐκ τῆς κώμης ὁμοθυμαδὸν ἀντέχεσθαι τῆς σῆς σκέπης, ‘having received certain information that the inhabitants of the village are with one accord claiming your protection” (Edd-), cf. Sy 329 (=*742)® (c. B.c. 85) ὁμοθυμαδὸν πάντων τῶν πολιτῶν ἐπιδεδωκότων ἑαυτοὺς els τοὺ[ς π]ερὶ τούτων ἀγῶνας, and 20. 732 (= 21104)?8 (5.6. 37-6) ἡ σύνοδος ἀποδεξαμένη τὴν ἐκτένειαν καὶ φιλοτιμίαν αὐτοῦ ὁμοθυμαδὸν προεβάλετο τοὺς εἰσοίσοντας αὐτοῖς τὰς καθηκούσας τιμὰς Λεύκιον κτλ. : cf. Ac 152° ἔδοξεν ἡμῖν γενομένοις ὁμοθυμαδόν --““1η6 decree is not the manifesto of a cabal or faction, but a decree of the entire Church convened together” (Hicks, Ο i. p. 45). In P Par 63% (B.c. 1€4) (= P Petr III. p. 26) Mahaffy renders ὁμοθυμαδόν “*without exception.” Mayser (Gy. p. 459) points out that the use of the acc. neut. of adjectives to form adverbs is specially characteristic of the Kow7.
Liddell-Scott-Jones — Greek-English Lexicon
ὁμοθυμαδόν (homothumadon) — united. ὁμοθῡμ-ᾰδόν, adverb with one accord, πάντες ὁ. [NT+5th c.BC+]