ἀδράνεια
From LSJ
καὶ νῦν περὶ ἀρετῆς ὃ ἔστιν ἐγὼ μὲν οὐκ οἶδα, σὺ μέντοι ἴσως πρότερον μὲν ᾔδησθα πρὶν ἐμοῦ ἅψασθαι, νῦν μέντοι ὅμοιος εἶ οὐκ εἰδότι → so now I do not know what virtue is; perhaps you knew before you contacted me, but now you are certainly like one who does not know
English (LSJ)
or ἀδραν-ία, ἡ,
A listlessness, weakness, Hdn.2.10.8, Just.Nov. 102.3: Ep. ἀδρανίη, A.R.2.200, Call.Fr.520, AP6.296 (Leon.), etc. II non-efficiency, τοῦ μὴ ὄντος Simp.in Cael.136.30. [δρᾰ.]
Greek (Liddell-Scott)
ἀδράνεια: ἡ, ἀπραξία, ὀκνηρία, ἀσθένεια, Ἡρωδιαν. 2. 10, 17. Ἐπ. ἀδρανίη, Ἀπολλ. Ρόδ. 2. 200 κτλ. [δρᾰ].