φρενολῃστής
From LSJ
τὸ γὰρ εὖ πράττειν παρὰ τὴν ἀξίαν ἀφορμὴ τοῦ κακῶς φρονεῖν τοῖς ἀνοήτοις γίγνεται → undeserved success engenders folly in unbalanced minds
English (LSJ)
οῦ, ὁ,
A robber of the understanding, deceiver, AP12.144 (Mel.).
German (Pape)
[Seite 1304] ὁ, Räuber der Seele, des Verstandes, Mel. 42 (XII, 144), ἔρως.