forensis (forum), is, m: Lawyer, who pleads
(Quintilien in " de institutione oratoria ")
and by extension: Forensis labor: the pleading
(Cicero in " Brutus de Claris oratoribus 91 "
and " Orator ad M. Brutum 208 ")

Latin Dictionary - F. Gaffiot - Librairie Hachette.forensis