controvertist

from The Collaborative International Dictionary of English v.0.48

Controvertist \Con"tro*ver`tist\, n.
   One skilled in or given to controversy; a controversialist.
   [1913 Webster]

         How unfriendly is the controvertist to the discernment
         of the critic!                           --Campbell.
   [1913 Webster] Contubernal