Quick Definition
really, truly
Strong's Definition
really
Derivation: adverb of the oblique cases of G5607 (ὤν);
KJV Usage: certainly, clean, indeed, of a truth, verily
Thayer's Greek Lexicon
ὄντως (from ὄν; on adverbs formed from participles cf. Alexander Buttmann (1873) Ausf. Spr. § 115 a. Anm. 3; Kühner, § 335 Anm. 2), adverb, truly, in reality, in point of fact, as opposed to what is pretended, fictitious, false, conjectural: Mar_11:32 (see ἔχω, I. 1 f.); Luk_23:47; Luk_24:34; Joh_8:36; 1Co_14:25; Gal_3:21 and Rec. in 2Pe_2:18; ὁ, ἡ, τό ὄντως followed by a noun, that which is truly etc., that which is indeed (τά ὄντως ἀγατα ἤ καλά, P'lat. Phaedr., p. 260 a.; τήν ὄντως καί ἀληθῶς φιλίαν, Plato, Clit., p. 409 e.; οἱ ὄντως βασιλεῖς, Josephus, Antiquities 15, 3, 5): as ἡ ὄντως (Rec. αἰώνιος) ζωή, 1Ti_6:19; ἡ ὄντως χήρα, a widow that is a widow indeed, not improperly called a widow (as παρθένος ἡ λεγομένη χήρα, i. e., a virgin that has taken a vow of celibacy, in Ignatius ad Smyrn. 13 [ET] (cf. Lightfoot, in the place cited); cf. Baur, Die sogen. Pastoralbriefe, p. 46ff), 1Ti_5:3; 1Ti_5:5; 1Ti_5:16. (Euripides, Aristophanes, Xenophon, Plato, and following; the Sept. for ΰΛξΐπΘν, Num_22:37; for ΰΘλΕο, Jer_3:23; for ΰΗκ, Jer_10:19.)
Mounce Concise Greek Dictionary
ὄντως ontōs 10x
really, in truth, truly, Mar_11:32 ; Luk_23:47 .
Abbott-Smith Greek Lexicon
ὄντως ,
adv.
( < ὤν , ptcp . of εἰμί , sum),
[in LXX : Num_22:37 ( H551 ), Jer_3:23 ( H403 ), Jer_10:19 ( H389 ), 1Ki_12:24 , Wis_17:14 * ;]
really, actually, truly: Mar_11:32 , Luk_23:47 ; Luk_24:34 , Joh_8:36 , 1Co_14:25 , Gal_3:21 ; Gal_4:1-31 ἡ ὄ . ζωή , 1Ti_6:19 ; ἡ ὄ . χήρα , 1Ti_5:3 ; 1Ti_5:5 ; 1Ti_5:16 †
Moulton & Milligan — Vocabulary of the Greek NT
ὄντως [page 452]
actually, indeed, as in Gal_3:21 , is seen in P Giss I. 22 .6 (time of Trajan) πρὸ π ]άν [τ ]ων εὔχομ [α ]ι . . . . τὴν [γλυκυ ]τάτην σου ὄψιν προσκυ [νῆσαι ] νυ̣̑ν ὄντως ἀμοιβ [ὴ ]ν [ . . . ] τῆς εὐσεβείας μου κτλ . For its use, virtually as an adj., preceded by the art. and followed by a noun ( 1Ti_5:3 ; 1Ti_5:16 , we may cite Ep. ad Diogn. x. 7, Arist. Apol. iv. 1. Cf. MGr τόντις , really : few adverbs in ως have survived in MGr.
Liddell-Scott — Intermediate Greek Lexicon
ὄντως [Etym: part. of εἰμί "(sum)"] "really, verily", Eur. , etc.; ὄντως τε καὶ ἀληθῶς "really" and truly, Plat.
STEPBible — Tyndale Abridged Greek Lexicon
ὄντως
adv. (ὤν, ptcp. of εἰμί, sum) [in LXX: Num.22:37 (אׇמְנָם), Jer.3:23 (אָכֵן), Jer.10:19 (אַךְ), 3Ki.12:24, Wis.17:14 * ;]
really, actually, truly: Mrk.11:32, Luk.23:47 24:34, Jhn.8:36, 1Co.14:25, Gal.3:21 4:1-31 ἡ ὄ. ζωή, 1Ti.6:19; ἡ ὄ. χήρα, 1Ti.5:3 5:5 5:16 †
(AS)