βεβαιωτικός
From LSJ
Ὡς οὐδὲν ἡ μάθησις, ἂν μὴ νοῦς παρῇ → Quam nihil est disciplina, ni mens → Wie wenig taugt das Lernen, wenn Begabung fehlt
English (LSJ)
ή, όν,
A confirmatory, Epict.Ench.52, S.E.P.1.169, etc. II -κόν, τό, tax paid to the Government as warrantor of sales, BGU156.9 (iii A. D.).