διαγνώστης
From LSJ
μηδ' εἰς ὀρχηστρίδος εἰσᾴττειν, ἵνα μὴ πρὸς ταῦτα κεχηνὼς μήλῳ βληθεὶς ὑπὸ πορνιδίου τῆς εὐκλείας ἀποθραυσθῇς → and not to dart into the house of a dancing-woman, lest, while gaping after these things, being struck with an apple by a wanton, you should be damaged in your reputation
English (LSJ)
ου, ὁ,
A examining magistrate, = Lat. cognitor, Gloss.
Spanish (DGE)
-ου, ὁ magistrado encargado de examinar las sentencias, Gloss.2.270.