ἐπισφράγισις
From LSJ
κάλλιστον ἐφόδιον τῷ γήρᾳ ἡ παιδεία (Aristotle, quoted by Diogenes Laertius 5.21) → the finest provision for old age is education
English (LSJ)
εως, ἡ, = ἐπισφραγισμός (confirmation), Greg.Cor.in Hermog. in Rh.7.1319W. 2 cadence of a verse, Sch.Heph.p.118C.
German (Pape)
[Seite 988] ἡ, Besiegelung, Bestätigung, Rhett.