Source : Webster's Revised Unabridged Dictionary (1913)

Or \Or\, prep. & adv. [AS. ?r ere, before. [root]204. See {Ere},
   prep. & adv.]
   Ere; before; sooner than. [Obs.]

         But natheless, while I have time and space, Or that I
         forther in this tale pace.               --Chaucer.

   {Or ever}, {Or ere}. See under {Ever}, and {Ere}.