Litigator | Webster's Dictionary of the English Language

litigator
lītĭgātor, ōris, m. [litigo], one engaged in a dispute, a disputant. I In gen., Plin. praef. § 3...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
litigator
lītigātor ōris, m litigo, a party to a lawsuit, litigant , C., Ta. ...

An Elementary Latin Dictionary