ἀντεμφαίνω
From LSJ
τὸ δὲ ποιεῖν ἄνευ νοῦ ἃ δοκεῖ καὶ σὺ ὁμολογεῖς κακὸν εἶναι: ἢ οὔ → but doing what one thinks fit without intelligence is—as you yourself admit, do you not?—an evil
English (LSJ)
A oppose by a counter-statement, ἀ. ταῖς ἀποφάσεσιν Plb.18.28.12.
German (Pape)
[Seite 246] dagegen anzeigen, widersprechen, τινί, Pol. 18, 11.