πεπεῖσθαι
From LSJ
πολλὰ τὰ δεινὰ κοὐδὲν ἀνθρώπου δεινότερον πέλει → many things are formidable, and none more formidable than man | wonders are many, and none is more wonderful than man | many things are bad, but nothing is more atrocious than man
Greek > English (Woodhouse Verbs Reversed)
(see also πείθω): be certain, be confident, be convinced, be positive, be sure