ποσταῖος
From LSJ
Ἐφόδιον εἰς τὸ γῆρας αἰεὶ κατατίθου → Bonum senectae compara viaticum → Wegzehrung für das Alter sorge stets dir vor
English (LSJ)
α, ον, (πόστος)
A on which day in the ordinal series? π. ἂν . . ἐκεῖσε ἀφικοίμην; i.e. in how many days? X.Cyr.5.3.28; π. πάρσι; Diog.Cyn. ap. D.L.6.39, cf. Gal.9.861.