ἀμαθαίνω

A. to be untaught, ignorant, only pres.; abs., Pl. R. 535e, Ph. 1.498, Aristid. 34(50).44, Plot. 4.4.24; ἀ. τι or εἴς τι to be ignorant in a thing, Pl. Lg. 689c, 689d.