controverter

from The Collaborative International Dictionary of English v.0.48

Controverter \Con"tro*ver`ter\, n.
   One who controverts; a controversial writer; a
   controversialist.
   [1913 Webster]

         Some controverters in divinity are like swaggerers in a
         tavern.                                  --B. Jonson.
   [1913 Webster]