măgistrātĭo — Lewis & Short
măgistrātĭo, ōnis, f.magistro,
I instruction, schooling (post-class.):
quae magistratione discuntur,App. Dogm. Plat. 2, p. 15, 15 (al. magistrā ratione).—
II Transf., concr., a school: in publicis magistrationibus, Cod. Th. 14, 9, 3.