confrere

noun

1. A colleague or fellow, especially a professional one.

   “Unfortunately, when it comes to the informant who turns state’s evidence against a confrere, the OED slaps on the obscure origin label.”

2. A fellow member of a religious organization, referring especially to Catholic religious orders of men.

   “Roger Bacon had little reverence for their Franciscan confrere, Alexander of Hales...”

   “... but there was a limited number of magisterial chairs, and so, after a couple of years, the Dominican and Franciscan Masters had to stand aside for the next confrere in line.”