Quick Definition
ἀληθῶς Adv truly, really, certainly
Strong's Definition
truly
Derivation: adverb from G227 (ἀληθής);
KJV Usage: indeed, surely, of a surety, truly, of a (in) truth, verily, very
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
ἀληθῶς, adv., [fr. Aeschyl. down], truly, of a truth, in reality; most cercainly: Jn. 1. 47 (48) ; iv.42; vi. 14,55 Rec.; vii. 26, 40; viii. 31; xvii. 8; Mt. xiv. 33; xxvi. 73; [Mk. xiv. 70; Mt.] xxvii. 54; [Mk. xv. 39]; Lk. Ix, 20; Xi. 44
Mounce Concise Greek Dictionary
ἀληθῶς alēthōs 18x
truly, really, Mt. 14:33; certainly, of a truth, Jn. 17:8; Acts 12:11: truly, actually, Jn. 4:18
Abbott-Smith Greek Lexicon
ἀληθῶς adv.
(< ἀληθής), [in LXX (Je 28:6, Ps 58:1, al.) chiefly for אָמֵן and cogn. forms;]
truly, surely: Mt 14:33 26:73 Mk 14:70 15:39, Lk 9:27 12:44 21:3, Jo 1:48 4:42 6:14 7:26, 40 8:31 17:8 Ac 12:11, I Th 2:13, I Jo 2:5.†
Liddell-Scott-Jones — Greek-English Lexicon
ἀληθῶς (alēthōs) — truly. Included with: ἀληθ-ής [ᾰ], Doric dialect ἀλᾱθής, ές, (λήθω, ={λανθάνω}: ἀληθὲς τὸ μὴ λήθῃ ὑποπῖπτον[Refs]:—unconcealed, so true, real, opposed to false, apparent:
I. [Refs 8th c.BC+]; ἀληθέϊ λόγῳ χρᾶσθαι[Refs 5th c.BC+]
I.2. of persons, etc., truthful, honest (not in [Refs 8th c.BC+]; οἶνος ἀ. `in vino veritas', [Refs 5th c.BC+]
I.3. of oracles, true, unerring, ἀλαθέα μαντίων θῶκον[Refs 5th c.BC+]; of dreams, [Refs 4th c.BC+]
II. of qualities or events, true, real, φίλος[Refs 5th c.BC+]; genuine, ἀ. εἶναι δεῖ τὸ σεμνόν, οὐ κενόν[Refs 4th c.BC+]
II.2. realizing itself, coming to fulfilment, ἀρά[Refs 4th c.BC+]
III. adverb ἀληθῶς, Ionic dialect -θέως, truly, [Refs 5th c.BC+]
III. b actually, in reality, γένος τόδε Ζηνός ἐστιν ἀ.[Refs 5th c.BC+]; τὴν ἀ. μουσικήν (i.e. οὖσαν) [Refs 4th c.BC+] —ὡς ἀ. in the true way, really, [Refs 5th c.BC+]: comparative -εστέρως[Refs 5th c.BC+] -έστερον [Refs 5th c.BC+]: superlative -έστατα[Refs 5th c.BC+]
III.2. neuter as adverb, proparoxytone ἄληθε; indeed? really? ironically, [Refs 5th c.BC+]
III.3. τὸ ἀληθές truly, Ionic dialect τὠληθές[Refs 3rd c.BC+] __B not forgetting, careful, γυνὴ χερνῆτις ἀ.[Refs 8th c.BC+]:—the sense honest is post- [Refs 8th c.BC+] ἀληθ-ίζω, dye with genuine purple, [Refs] __B.II middle -ίζομαι, ={ἀληθεύω}, [Refs 5th c.BC+]