ἀνίχνευσις
From LSJ
ἔοικα γοῦν τούτου γε σμικρῷ τινι αὐτῷ τούτῳ σοφώτερος εἶναι, ὅτι ἃ μὴ οἶδα οὐδὲ οἴομαι εἰδέναι → I seem, then, in just this little thing to be wiser than this man at any rate, that what I do not know I do not think I know either
English (LSJ)
εως, ἡ,
A tracing out, investigation, Eust.1437.16.
Greek (Liddell-Scott)
ἀνίχνευσις: -εως, ἡ, τὸ ἀνιχνεύειν, Εὐστρ. 1437. 16.