Magistro, magistras, magistrare. Festus. To play the maister: to rule: to gouerue.
Lewis and Short: Latin dictionary
măgistra, ae, f. [id.], a mistress, superior, conductress, directress, etc. I. Lit (very rare): ludo magistra esse,
school-mistress, instructress
, Ter. Hec. 2, 1, 7.—A highpriestess, Inscr. Orell. 1501; 1519 sq.; 2427 sq.—II.Trop., a directress, conductress, instructress: nunc ego ad vos discipulus venio ad magistras, Plaut. Stich. 1, 2, 32: vita rustica parsimoniae magistra est. Cic. Rosc. Am. 27, 75: philosophia magistra vitae, id. Tusc. 5, 2, 5: historia, magistra vitae, id. de Or. 2, 9, 36: lex quasi dux vitae et magistra officiorum, id. N. D. 1, 15, 40: frigus formicā quidam expavere magistrā, Juv. 6, 361: vita magistra, id. 13, 22: arte magistrā,
with the aid of art
, Verg. A. 8, 442: pietate magistrā, Stat. Achil. 1 104.—Adj. (poet.): artes magistrae, Ov. H. 15, 82: jussis parere magistris, Sil. 3, 387: clementia magistra, Claud. 22, 22.