Extended Strong's Greek Lexicon (Abbott-Smith based)
midnight
Usage: μεσο-νύκτιος (on seel, μεσα-, see Bl., § 6, 2), -ον (μέσος, νύξ), [in LXX chiefly for לַיִל חֵצִי ;] of or at midnight; as subst., neut., τὸ μ., midnight (Arist. and late writers) : genitive, Luk.11:5; μέχρι μ., Act.20:7; κατὰ τὸ μ., Act.16:25; accusative (Rec., genitive; see Bl., § 34, 8), Mrk.13:35.† μεσανύκτιον, see. μεσονύκτιος (AS)