arguer

noun

Etymology: From Middle English arguer, arguere, equivalent to argue + -er.

1. One who argues.

   “Basically, it is a personal attack on an arguer that brings the individuals's personal circumstances, trustworthiness, or character into question.”

   “Such changes would seem basic in other broadcast organizations, but they have landed Ms. Scott in a hornet's nest of attacks and recriminations from some of the most ardent arguers in the medium.”