Moderatrix | Webster's Dictionary of the English Language

moderatrix
mŏdĕrātrix, īcis, f. [moderator]. I She who moderates or allays; a directress, mistress, governess...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
moderatrix
moderātrīx īcis, f moderator, she who rules, a directress, guide, controller : temperantia commoti...

An Elementary Latin Dictionary