rectrix — Lewis & Short
rectrix, īcis, f.rector,
I she that leads or guides; a directress, governess, mistress (post-Aug.):
animam velut aurigam rectricemque membrorum,Col. 3, 10, 9:
sapientia domina rectrixque est,Sen. Ep. 85, 32:
Italia rectrix parensque mundi altera,Plin. 37, 13, 77, § 201.