φρενοβλαβής
From LSJ
Ὁ μὲν βίος βραχύς, ἡ δὲ τέχνη μακρή, ὁ δὲ καιρὸς ὀξύς, ἡ δὲ πεῖρα σφαλερή, ἡ δὲ κρίσις χαλεπή → Life is short, art long, opportunity fleeting, experience misleading and judgment difficult
English (LSJ)
ές, (βλάπτω)
A deranged, crazy, Hdt.2.120, Eup.181.7, Luc.Syr.D.43, Hierocl.in CA 24p.472M., etc.
German (Pape)
[Seite 1304] ές, am Verstande verletzt, dah. wahnsinnig, unsinnig; Eup. bei Plut. Nic. 4; Her. 2, 120, adv. φρενοβλαβῶς.