I.really, at all events, used like γοῦν to dismiss a perplexing subject, οὔτ᾽ οὖν ἀγγελίῃς ἔτι πείθομαι, οὔτε θεοπροπίης ἐμπάζομαι Od.; ἐλέχθησαν λόγοι ἄπιστοι μὲν ἐνίοισι Ἑλλήνων, ἐλέχθησαν δ᾽ ὦν but they really were spoken, Hdt.; εἴτ᾽ οὖν, εἴτε μὴ γενήσεται whether it shall be really so, or no, Eur.; εἴτ᾽ οὖν ἀληθὲς εἴτ᾽ οὖν ψεῦδος Plat.; εἰ δ᾽ ἔστιν, ὥσπερ οὖν ἔστι, θεός if he is, as he surely is, a god, id=Plat.
2.added to indef. Pronouns and Advs., like Lat. cunque, ὅστις whoever, ὁστισοῦν whosoever; ὅπως how, ὁπωσοῦν howsoever; ἄλλος ὁστισοὖν another, be he who he may; so, ὁποιοσοῦν, ὁποσοσοῦν, ὁπωσοῦν, ὁποθενοῦν, etc.