νυκτοσκόπος
From LSJ
πολλὰ μεταξὺ πέλει κύλικος καὶ χείλεος ἄκρου → there is many a slip twixt cup and lip, there's many a slip twixt cup and lip, there's many a slip 'twixt cup and lip, there's many a slip twixt the cup and the lip, there's many a slip 'twixt the cup and the lip
Greek Monolingual
νυκτοσκόπος, ὁ (Μ)
νυχτερινός σκοπός, νυκτοφύλακας.
[ΕΤΥΜΟΛ. < νύξ, νυκτός + -σκόπος (< σκοπός), πρβλ. ονειροσκόπος].