LSJ
Conj. and Adv. and not yet, not as yet, A. Pr. 322, Pl. Smp. 172c, etc. ; in Hom., mostly with a word between, οὐδέ τί πω, οὐδ’ ἄν πω, etc., always of the past (cf. οὔπω); later with pres., Pl. Phd. 106b, etc. ; σὺ δὲ οὐδέπω ὁρᾷς Luc. Merc. Cond. 21; with fut., ὅσον οὐδέπω συμβήσεσθαι Zos. 2.1; cf. οὐδέποτε.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)