ψευδοδοξία
From LSJ
ἀμήχανον δὲ παντὸς ἀνδρὸς ἐκμαθεῖν ψυχήν τε καὶ φρόνημα καὶ γνώμην, πρὶν ἂν ἀρχαῖς τε καὶ νόμοισιν ἐντριβὴς φανῇ → hard it is to learn the mind of any mortal or the heart, 'till he be tried in chief authority | it is impossible to know fully any man's character, will, or judgment, until he has been proved by the test of rule and law-giving
English (LSJ)
ἡ,
A false opinion or notion, Polystr.p.14 W., Phld.D.1.14(pl.), Str.14.5.28, Plu.2.716b, Hierocl. in CA12p.446M., etc.
German (Pape)
[Seite 1394] ἡ, falsche Meinung, Irrwahn; Plut. Symp. 7 a. E.; Ceb. Tabul. u. a. Sp.
Greek (Liddell-Scott)
ψευδοδοξία: ἡ, ψευδὴς δοξασία, ἐσφαλμένη γνώμη, Στράβ. 680, Πλούτ. 2. 716Β, κλπ.