Source : Webster's Revised Unabridged Dictionary (1913)

Procatarctic \Pro`cat*arc"tic\, a. [Gr. ? beginning beforehand.
   fr. ? to begin first; ? before + ? to begin; ? intens. + ? to
   begin: cf. F. procatarctique. ] (Med.)
   Beginning; predisposing; exciting; initial. [Obs.]

   Note: The words procatarctic causes have been used with
         different significations. Thus they have been employed
         synonymously with prime causes, exciting causes, and
         predisposing or remote causes.

               The physician inquires into the procatarctic
               causes.                            --Harvey.