The Collaborative International Dictionary of English v.0.48:

Roun \Roun\, Rown \Rown\, v. i. & t. [AS. r[=u]nian, fr. r[=u]n
   a rune, secret, mystery; akin to G. raunen to whisper. See
   Rune.]
   To whisper. [obs.] --Gower.
   [1913 Webster]

         Another rouned to his fellow low.        --Chaucer.
   [1913 Webster]