ἐνσυλλάμβανομαι
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
Spanish (DGE)
aprovecharse de καταστάσεις PStras.5.13 (III d.C.).