μετάλλευσις
From LSJ
κινδυνεύει μὲν γὰρ ἡμῶν οὐδέτερος οὐδὲν καλὸν κἀγαθὸν εἰδέναι, ἀλλ᾽ οὗτος μὲν οἴεταί τι εἰδέναι οὐκ εἰδώς, ἐγὼ δέ, ὥσπερ οὖν οὐκ οἶδα, οὐδὲ οἴομαι· ἔοικα γοῦν τούτου γε σμικρῷ τινι αὐτῷ τούτῳ σοφώτερος εἶναι, ὅτι ἃ μὴ οἶδα οὐδὲ οἴομαι εἰδέναι. → for neither of us appears to know anything great and good; but he fancies he knows something, although he knows nothing; whereas I, as I do not know anything, so I do not fancy I do. In this trifling particular, then, I appear to be wiser than he, because I do not fancy I know what I do not know.
English (LSJ)
εως, ἡ, v. l. for μεταλλεία, Palaeph.9: in pl.,
A mining operations, Ph.Bel.91.19.
German (Pape)
[Seite 149] ἡ, = μεταλλεία, Palaeph. 10.
Greek (Liddell-Scott)
μετάλλευσις: ἡ, = μεταλλεία, Παλαίφ. 10.