πέπεισθι
From LSJ
ὑμῖν ἔξεστι εὐδαίμοσι γενέσθαι → to you it is permitted to be joyful, it is permitted to be happy, it is permitted to be fortunate, vobis licet esse beatis
πέπεισθι: αντί πέποιθε, προστ. αμτβ. παρακ. του πείθω.
πέπεισθι: Aesch. imper. pf. 2 к πεῖθω.