ἐπίκυκλος
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)
ὁ, Astron.,
A epicycle, Plu.2.1028b, Theo Sm.p.162H., Ptol.Alm.3.3, Iamb.VP6.31 (pl.), etc.
German (Pape)
[Seite 954] ὁ, der Nebenkreis, in der Astronomie, Plut. de anim. procr. e Tim. 31.