Quick Definition
two
Strong's Definition
"two"
Derivation: a primary numeral;
KJV Usage: both, twain, two
Thayer's Greek Lexicon
δύο, genitive indeclinable δύο (as in Epic, and occasionally in Herodotus, Thucydides, Xenophon, Polybius, others for δυοιν, more common in Attic (see Rutherford, New Phryn., p. 289f)); dative δυσί, δυσίν (δυσί in Mat_6:24; Luk_16:13; Act_21:33 (Tr δυσίν), δυσίν in Mat_22:40; Mar_16:12; Luk_12:52 (R G δυσί; Act_12:6 (R G L δυσί); Heb_10:28; Rev_11:3 (R G δυσί); cf. Tdf. Proleg., p. 98; WHs Appendix, p. 147) a form not found in the older and better writings, met with in Hippocrates, Aristotle, Theophrastus, frequent from Polybius on, for the Attic δυοιν); accusative δύο (cf. Lob. ad Phryn., p. 210; Alexander Buttmann (1873) Ausf. Spr. i., p. 276f; Winers Grammar, § 9, 2 b.; Passow, i., p. 729); two: absolutely, οὐκ ἔτι εἰσί δύο, ἀλλά σάρξ μία, Mat_19:6; Mar_10:8; δύο ἤ τρεῖς, Mat_18:20; 1Co_14:29; τρεῖς ἐπί δυσί καί δύο ἐπί τρισί, Luk_12:52; ἀνά and κατά δύο, two by two (Winers Grammar, 398 (372); 401 (374); Buttmann, 30 (26)), Luk_9:3 (WH omits; Tr brackets ἀνά); (WH ἀνά δύο (δύο); cf. Acta Philip. § 36, Tdf. edition, p. 92); Joh_2:6 (apiece); 1Co_14:27; δύο δύο, two and two, Mar_6:7 (so, after the Hebrew, in Gen_6:19-20; but the phrase is not altogether foreign even to the Greek poets, as Aesehyl. Pers. 981 μύρια μύρια for κατά μυριάδας, cf. Winer's Grammar, 249 (234) (cf. 39 (38))); neuter εἰς δύο into two parts, Mat_27:51; Mar_15:38; with the genitive δύο τῶν μαθητῶν (αὐτοῦ), Mar_11:1; Mar_14:13; Luk_19:29; (Mat_11:2 R G); τῶν οἰκετῶν, Act_10:7. δύο ἐξ αὐτῶν, Luk_24:13 (cf. Alexander Buttmann (1873) 158 (138); Winer's 203 (191)). with a noun or pronoun: δύο δαιμονιζόμενοι, Mat_8:28. δύο μάχαιραι, Luk_22:38; ἐπί στόματος δύο μαρτύρων, Mat_18:16; 2Co_13:1; δυσί κυρίοις, Mat_6:24; Luk_16:13; εἶδε δύο ἀδελφούς, Mat_4:18; preceded by the article, οἱ δύο, the two, the twain: Mat_19:5; Mar_10:8; 1Co_6:16; Eph_5:31; τούς δύο, Eph_2:15; αἱ (Rec. only) δύο διαθῆκαι, Gal_4:24; οὗτοι (Lachmann brackets οὗτοι) οἱ δύο υἱοί μου, Mat_20:21; περί τῶν δύο ἀδελφῶν, Mat_20:24; ἐν ταύταις ταῖς δυσίν ἐντολαῖς, Mat_22:40; τούς δύο ἰχθύας, Mat_14:19; Mar_6:41; Luk_9:16; δύο δηνάρια, Luk_10:35.
Mounce Concise Greek Dictionary
δύο dyo 135x
two, Mat_6:24 ; Mat_21:38 ; Mat_21:31 , et al. freq.; οἱ δύο , both, Joh_20:4 ; δύο ἠ τρεῖς , two or three, some, a few, Mat_18:20 ; from the Hebrew, δύο δύο , two and two, Mar_6:7 , i.q. ἀνὰ δύο , Luk_10:1 , and κατὰ δύο , 1Co_14:27 two.
Abbott-Smith Greek Lexicon
δύο ,
numeral, indecl . exc . in dat ., δυσί , δυσίν ( Attic δυοῖν ),
two: Mat_19:6 , Mar_10:8 , Joh_2:6 , al.; with pl . noun, Mat_9:27 ; Mat_10:10 , al. ; οἱ , τῶν , τοὺς δ ., Mat_19:5 ; Mat_20:24 , Mar_10:8 , Eph_2:15 , al. ; δ . ἐξ , Luk_24:13 ; distrib., ἀνὰ , κατὰ δ ., two and two, two apiece: Luk_10:1 ( WH , ἀνὰ δ . [δύο ]), Joh_2:6 ; 1Co_14:27 ; δύο δύο ( = ἀνὰ δ ., as LXX , Gen_6:19 for H8147 , but not merely "Hebraism," cf. μυρία μυρία , Ζsch ., Pers ., 981, and for usage in Papyri and MGr ., v. M , Pr., 21, 97), Mar_6:7 ; εἰς δ . (two and two, Xen ., Cyr., 7, 5, 17), into two parts, Mat_27:51 , Mar_15:38 .
Moulton & Milligan — Vocabulary of the Greek NT
δύο [page 172]
The disappearance of the dual flexion of δύο is in line with the whole tendency of Hellenistic : see Proleg. p. 77 ff. The gen. and dat. δυοῖν appears occasionally in a document where the writer desires to make broad his Attic phylacteries : thus P Giss I. 99 .15 (B.C. 80) ἐ ]ν στή [λαι ]ν δυοῖν [ἔ ]μ̣προσθε̣ν ἱδρυμέ [ν ]αιν τοῦ [ν ]εώ , P Strass I. 52 .33 (A.D. 151) ἀρουρῶν δυο̣ῖν ἡμίσους τρίτου (or was this δυεῖν ?), P Oxy VIII. 1119 .20 (A.D. 254) δυοῖν θάτερον . The literary Hellenistic δυεῖν (late Attic), which arose phonetically out of δυοῖν (Brugmann-Thumb Gr. p. 78), appears in several papyri, as P Par 1 .293 (the Eudoxus astronomical treatise c. B.C. 165) δυεῖν μηνῶν χρόνος , P Ryl II. 109 .5 (A.D. 235) πατὴρ τῶ [ν ] δυεῖν the document has υἱέας later!, ib. 269 .5 (ii/A.D.) ἐ̣κ̣ δυεῖν οἰκ̣[ῶ ]ν̣ this document also betrays artificial dialect by the registering historic present τελευτᾷ ( Proleg. p. 120), ib. 357 (A.D. 201 11) ἀρουρῶν δυεῖν , P Oxy VIII. 1117 .16 ( c. A.D. 178) ἐκ δυεῖν ταλάντων here again there is some fine writing in the context, a petition to a Praefect, who would no doubt be impressed by it. Greek dialects pluralized the flexion in different ways see Brugmann-Thumb Gr. p. 249 f. In Hellenistic we have dat. δυσίν , passim in all our documents, and to a very limited extent gen. δυῶν : see Mayser, Gr. p. 314, who can only quote OGIS 56 .62 (B.C. 239 8 the Canopus decree) ἐκ σταχύων δυῶν (in copy A), and BGU I. 287 .25 (ii/A.D.) ἀρουρῶν δυῶν it is ancient Ionic (Herod. and Hippocrates) and Cretan Doric (Gortyn Inscr.). That in MGr δυῶν (ε ) occurs occasionally (Thumb Handb. p. 81) may show that the form ran underground to emerge in a few places, but it might be independent analogy. Δυσίν is Ionic (first in Hippocrates), as we might expect from that dialect s early sacrifice of the dual. With the indeclinable δύο for nom., acc. and gen., it forms the whole of the Κοινή flexion. (The pre-classical δύω , which lived on in δ (υ )ώδεκα , is cited by Mayser (p. 313) from P Leid T i. 34 (B.C. 164 0) and P Grenf II. 38 .12 (B.C. 81) but there are other cases of ω for ο in this last document by sheer miswriting.) Mayser makes Syll 177 .26 (Teos,B.C. 304) the oldest inscriptional warrant for δυσί , which appears in literature before Aristotle. In Attic inscrr. (Meisterhans, p. 157) δυεῖν supplants δυοῖν in Alexander s time, and lasts a century, δυσί beginning in iii/B.C.
On δύο δύο see Proleg. p. 97 : add to illustrate ἀνὰ δύο δύο P Oxy VI. 886 .19 (magical iii/A.D.) ερε κατὰ δύο δύο , lift them up two by two (Edd.). It may be noted that οἱ δύο supplants ἄμφω , as in Mar_10:8 etc., P Giss I. 2 ii. 5. .14 (B.C. 173) μάρτυ̣ρες φίλιος Μακεδών , Δημοκρατίω̣ν Θέσσαλος , οἱ δύο τῶν Κινέου , and οἱ δύο τῆς ἐπιγονῆς the document has also οἱ τρεῖς MGr has κ᾽ οἱ δυό , both, οἱ δυό μας , both of us.
Liddell-Scott — Intermediate Greek Lexicon
δύο ( du/o numeral )( du/w numeral ) ( duoi=n numeral ) ( duw=n numeral ) ( duoi=si numeral ) ( dusi/ numeral ) [Etym: can be indecl., like ἄμφω, by Hom. , τῶν δύο μοιράων, δύω κανόνεσσι Il. ; so in Hdt. and attic Prose; but declined in Trag. ] "two", Il. , etc.;—in Poets δύο or δύω may be joined with pl. Nouns, δύο δ᾽ ἄνδρες id=Il. :— εἰς δύο "two and two", Xen. ; σὺν δύο "two" together, Il. , Hdt.
STEPBible — Tyndale Abridged Greek Lexicon
δύο, numeral, indecl. exc. in dative, δυσί, δυσίν (Attic δυοῖν),
two: Mat.19:6, Mrk.10:8, Jhn.2:6, al.; with pl. noun, Mat.9:27 10:10, al.; οἱ, τῶν, τοὺς δ., Mat.19:5 20:24, Mrk.10:8, Eph.2:15, al.; δ. ἐξ, Luk.24:13; distrib., ἀνὰ, κατὰ δ., two and two, two apiece: Luk.10:1 (WH, ἀνὰ δ. [δύο]), Jhn.2:6, 1Co.14:27; δύο δύο (= ἀνὰ δ., as LXX, Gen.6:19 for שְׁנַיִם שְׁנַיִם, but not merely "Hebraism," cf. μυρία μυρία, Æsch., Pers., 981, and for usage in π. and MGr., see M, Pr., 21, 97), Mrk.6:7; εἰς δ. (two and two, Xen., Cyr., 7, 5, 17), into two parts, Mat.27:51, Mrk.15:38.
(AS)
