καταίνεσις
From LSJ
Δύο γὰρ, ἐπιστήμη τε καὶ δόξα, ὧν τὸ μὲν ἐπίστασθαι ποιέει, τὸ δὲ ἀγνοεῖν → Two different things are science and belief: the one brings knowledge, the other ignorance
English (LSJ)
εως, ἡ,
A betrothal, Plu.TG4.
German (Pape)
[Seite 1350] ἡ, das Versprechen, Zusage, sponsio; καταινέσεως οὕτω γενομένης Plut. Tib. Graech. 4.