disceptātrix, īcis, f. [disceptator],
a female umpire, arbitrator, judge (very rare): dialectica veri et falsi quasi disceptatrix et judex, * Cic. Ac. 2 ( Luc. ), 28, 91; Lampr. Commod. 5.
disceptātrīx īcis, f disceptator, an arbitrator : dialectica veri et falsi. ...
An Elementary Latin Dictionary