ἐπισφραγισμός
From LSJ
Τὸ μανθάνειν δ' ἥδιστον εὖ λέγοντος, εἰ κέρδος λέγοι → It is the sweetest thing to learn from one speaking well, if they speak profitably
English (LSJ)
ὁ, confirmation, Sch.Hermog.in Rh.7.425W.
German (Pape)
[Seite 988] ὁ, = ἐπισφράγισις, Rhett.
Greek (Liddell-Scott)
ἐπισφρᾱγισμός: ὁ, ἐπιβεβαίωσις, μνημονεύεται ἐκ τῶν Ρητόρων (Walz): ‒ οὕτως, ἐπισφράγισις, εως, ἡ, αὐτόθι 7. 1319· ἐπισφράγισμα, τό, Εὐσ. Ἐκκλ. Ἱστ. 10. 1, κτλ.