Source : Webster's Revised Unabridged Dictionary (1913)

Roun \Roun\, Rown \Rown\, v. i. & t. [AS. r?nian, fr. r?n a
   rune, secret, mystery; akin to G. raunen to whisper. See
   {Rune}.]
   To whisper. [obs.] --Gower.

         Another rouned to his fellow low.        --Chaucer.