convertĭbĭlis (convers-), e, adj. [converto],
I changeable (post-class.): propositiones, Ap. Dogm. Plat. 3, p. 33, 1 and 2 (al. conversibilis): deus convertibilis et demutabilis, Prud. Apoth. 344.
II —Hence, con-vertĭbĭlĭter , adv., changeably (late Lat.), Aug. Music. 5, 13.