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.
Lewis & Short
A Latin Dictionary, 1879
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