ἀττικίζειν
From LSJ
Ἢ μὴ ποίει τὸ κρυπτὸν ἢ μόνος ποίει → Aut occulendum nil patra, aut solus patra → Tu nichts Verborgnes oder tue es allein
Lexicon Thucydideum
ab Atheniensibus stare, to side with the Athenians, 3.62.1 (de Plataeensibus concerning the Plataeans), 8.87.1 (de Thissapherne concerning Tissaphernes).