μὴ οὐ · mē ou — LSJ
with finite forms of the Verb, after Verbs expressing fear or apprehension (cf. μή B. 8):
mostly with subj., δείδω μὴ οὔ τίς τοι ὑπόσχηται τόδε ἔργον Il. 10.39, cf. Hdt. 6.9, Th. 3.53, 57, Pl. Men. 89d, etc.: after hist. tenses, with opt., ἠθύμησάν τινες ἐννοούμενοι μὴ οὐκ ἔχοιεν ὁπόθεν λαμβάνοιεν X. An. 3.5.3, etc.: with fut. opt. representing fut. ind. in orat. obliq., μὴ οὐκ ὀρθῶς αὐτὸ ποιήσοις Pl. Euthphr. 15d.
with ind., ὁρᾶτε μὴ οὐκ ἐμοὶ μάλιστα τῶν πολιτῶν προσήκει And. 1.103, cf. Pl. La. 196c, Alc. 2.139d.
without introductory Verb, with subj., μή νύ τοι οὐ χραίσμῃ Il. 1.28, cf. 566, E. Tr. 982; also to suggest hesitation, perhaps (cf. μή B. 9), μὴ οὐ τοῦτο ᾖ τὸ χρηστήριον Hdt. 5.79, cf. Pl. Phd. 67b, Smp. 194c, 214c, etc.: also with ind., μὴ τοῦτο οὐ καλῶς ὡμολογήσαμεν Id. Men. 89c.
μή is sts. doubled, irregularly, for μὴ οὐ, ἐθαύμαζε δʼ εἴ τις . . φοβοῖτο, μὴ ὁ γενόμενος καλὸς κἀγαθὸς . . μὴ τὴν μεγίστην χάριν ἔχοι X. Mem. 1.2.7, cf. Th. 2.13.
after a neg. expressed or implied:
c. inf.,
after Verbs of hindering, denying, avoiding, needing, when these Verbs are themselves negatived or questioned, οὐκέτι ἀνεβάλλοντο μὴ οὐ τὸ πᾶν μηχανήσασθαι they no longer hesitated to try every expedient, Hdt. 6.88, cf. 8.100, 119; τί δῆτα μέλλεις μὴ οὐ γεγωνίσκειν; A. Pr. 627, cf. S. Aj. 540, Ar. Ach. 320, X. Cyr. 1.4.2, 4.3.8, Pl. Euthd. 304c, D. 24.24; οὐκ ἀνατίθεμαι μὴ οὐ καλῶς λέγεσθαι Pl. Men. 89d, cf. Phd. 87a; πολλοῦ δέω μὴ οὐ δύο γε φεύγειν Id. Euthd. 297b; τίνος ἐνδέομεν μὴ οὐ πανσυδίᾳ
after Verbs and phrases signifying impossibility, impropriety, reluctance, when not negatived, ἄνδρα δʼ οὐκ ἔστι μὴ οὐ κακὸν ἔμμεναι Simon. 5.10; δεινὸν ἐδόκεε εἶναι μὴ οὐ λαβεῖν Hdt. 1.187; ἔστι οὐδεμία μηχανὴ μὴ οὐκ ἀπολωλέναι Id. 2.181, cf. 3.51, 7.5; οὐδεὶς ἂν τολμήσειεν μὴ οὐ χρῆσθαι τῷ νόμῳ Antipho 5.87, cf. Th. 8.60; αἰσχύνη ἦν μὴ οὐ συσπουδάζειν X. An. 2.3.11; αἰσχρόν ἐστι μὴ οὐκ ἄλλας πληγὰς ἐμβάλλειν τῷ υἱεῖ Id. Lac. 6.2; οὐδεὶς οἷός τʼ ἐστὶν ἄλλως λέγων μὴ οὐ (nemo potest non) καταγέλ
less freq. c. part. after a neg. expressed or implied, οὔκων δίκαιον [ἀνδριάντα] ἱστάναι . . μὴ οὐκ ὑπερβαλλόμενον τοῖσι ἔργοισι Hdt. 2.110, cf. 6.9, 106; δυσάλγητος γὰρ ἂν εἴην τοιάνδε μὴ οὐ κατοικτείρων ἕδραν S. OT 13, cf. 221, OC 360, Isoc. 10.47 (dub. l.), Pl. Ly. 212d, Philem. 213.5: hence
= εἰ μή, except, πόλεις . . χαλεπαὶ λαβεῖν, μὴ οὐ χρόνῳ καὶ πολιορκίᾳ D. 19.123.
in questions expecting an affirmative answer, LXX Jd. 14.3, 1 Ep.Cor. 9.4, Aesop. 404.