σαπώνιον
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
English (LSJ)
τό, Dim. of σάπων, Sch.Theoc.3.17, Zos.Alch.p.143 B.; cf. σαφώνιον.