μαθημοσύνη
From LSJ
Ὦ τύμβος, ὦ νυμφεῖον, ὦ κατασκαφὴς οἴκησις αἰείφρουρος, οἷ πορεύομαι πρὸς τοὺς ἐμαυτῆς → Tomb, bridal chamber, eternal prison in the caverned rock, whither I go to find mine own.
English (LSJ)
ἡ, A learning, IGRom.4.607 (Phryg.).
Greek Monolingual
μαθημοσύνη, ἡ (Α) μανθάνω
η μάθηση.