Πειρίθους

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

Source

French (Bailly abrégé)

οῦ (ὁ) :
dat. ῷ, acc. ουν;
Peirithoos (Pirithoüs) fils d'Ixion ou de Zeus, un des Lapithes.
Étymologie: πεῖρα, θοός, sel. d'autres, περί, θέω.