γλυκυμήχανος
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)
Dor. γλῠκυ-μάχᾰνος, ον, having pleasant devices, Pi.Pae.2.80.
Spanish (DGE)
(γλῠκῠμήχᾰνος) -ον de dulces artimañas s. cont., Pi.Fr.52b.80.