ἐξυβρίζειν
From LSJ
μηδενί δίκην δικάσῃς πρίν ἀμφοῖν μῦθον ἀκούσῃς → do not give your judgement on anything until you have heard a speech on both sides
Greek > English (Woodhouse Verbs Reversed)
(see also ἐξυβρίζω): act insolently, be audacious
Lexicon Thucydideum
insolescere, to become insolent, 1.84.2.
insolescere, to become insolent, 3.39.5.