Lexical Definition

‎οὐκοῦν‎ oukoûn (ook-oon') so ^{G:PRT-N+G:CONJ}
from ‎οὐ‎ and ‎οὖν‎

then.

• is it not therefore that, i.e. (affirmatively) hence or so

Abbott-Smith

οὐκοῦν, adv. (< οὔκουν, not therefore),
with the negative element lost, therefore, so then: Jo 18:37.†

Abbott-Smith References

Liddell-Scott-Jones

οὐκοῦν,

Doric dialect οὐκῶν, adverb, composed, like{οὔκουν}, of οὐκ and οὖν, but differing in meaning and accent,[Refs 2nd c.AD+]

__I in questions, inviting assent to an inference, or to an addition to what has already received assent, οὐκοῦν δοκεῖ σοι.. ; you think then, do you not, that.. ? [Refs 5th c.BC+]subjunctive, οὐκοῦν καὶ ἄλλους σε φῶμεν δυνατὸν εἶναι ποιεῖν (i.e. ῥήτορας ἀγαθούς) ; [Refs] when a negative answer is invited, οὐκοῦν οὐκ ἂν εἴη τὸ μὴ λυπεῖσθαί ποτε ταὐτὸν τῷ χαίρειν ;[Refs]; οὐκοῦν οὐδ᾽ ἂν εἷς ἀντείποι ; [Refs 4th c.BC+]
__II in affirmative sentences, surely then, οὐκοῦν, εἰ ταῦτα ἀληθῆ, πολλὴ ἐλπὶς ἀφικομένῳ οἷ ἐγὼ πορεύομαι [Refs 5th c.BC+]subjunctive or imperative, οὐκοῦν διδάσκωμεν αὐτόν, ἀλλὰ μὴ λοιδορῶμεν let us teach him, then, [Refs]; οὐκοῦν.. ἱκανῶς ἐχέτω let this then suffice, [οὐκοῦν ἂν ἤδη.. λέγοι 5th-6th c.BC: Aristophanes Comicus “Pax” 43 ">Refs 5th c.BC+]: with a prohibition, οὐκοῦν μὴ.. αὐτομολήσῃς [Refs 4th c.BC+]; οὐκοῦν ὑπόλοιπον δουλεύειν slavery, then, is the only alternative, [Refs 4th c.BC+]
__II.2 in replies, very well, yes, ἴωμεν.. Answ. οὐκοῦν ἐπειδὰν πνεῦμα τοὐκ πρῴρας ἀνῇ, τότε στελοῦμεν [Refs 5th c.BC+]; ἀμηχάνων ἐρᾷς. Answ. οὐκοῦν, ὅταν δὴ μὴ σθένω, πεπαύσομαι [Refs]; ἥξει γὰρ αὐτά, κἂν ἐγὼ σιγῇ στέγω. Answ. οὐκοῦν ἅ γ᾽ ἥξει καὶ σὲ χρὴ λέγειν ἐμοί [Refs]; ἀπόλωλας, ὦ κακόδαιμον. Answ. οὐκοῦν, ἢν λάχω [Refs 5th c.BC+]; ἴθι δὴ σκεψώμεθα.. Answ. οὐκοῦν χρή yes, let us do so, [Refs 5th c.BC+]; surely, οὐκοῦν τρύγοιπος ταῦτα πάντ᾽ ἰάσεται [οὐκοῦν κλεινὴ καὶ ἔπαινον ἔχουσ᾽.. ἀπέρχῃ 5th c.BC: Sophocles Tragicus “Antigone” 817 (\_anapaest meter\_). ">Refs 5th c.BC+]