oratrix
/ɒˈreɪtrɪks/ /ˈɒrətrɪks/noun
A female plaintiff or petitioner. Now rare (chiefly US Law ).
- Formerly commonly used in closing a letter or petition..
Origin
Late Middle English. From classical Latin ōrātrīc-, ōrātrīx, feminine form corresponding to ōrātor orator: see -trix.