Lewis & Short

discī̆plīnābĭlis, e, adj. [disciplina], to be learned by teaching, Cassiod. Var. 4, 33; Isid. 2, 24, 9.
Hence, adv.: discī̆plīnā-bĭlĭter, in an instructive manner, Cassiod. in Psalt. praef. 4; id. in Psa. 150, 4.