εὐηθίζομαι
From LSJ
ἀμβλύς εἰμι καὶ κατηρτυκὼς κακῶν → I'm jaded and with much experience of evils
English (LSJ)
Med.,
A to act like an εὐήθης, play the fool, πρὸς ἀλλήλους Pl.R.336c; to be merry, jest, Philostr.VA8.7.
German (Pape)
[Seite 1066] gutmüthig, einfältig sein u. sprechen; τί εὐηθίζεσθε πρὸς ἀλλήλους Plat. Rep. I, 336 e; Sp. – Suid. auch act. εὐηθίζω, μωραίνω.