What does the word dun mean?

Usage examples for dun

  1. Long ago the heather had faded, a soft dun colour had taken the place of the royal purple, which earlier in the year had carpeted the uplands, and the bracken blazed golden and brown upon the moorland slopes. – Christina by L. G. Moberly
  2. And they whispered oftener and oftener that the soul of Hereward haunted the Bruneswald, where he loved to hunt the dun deer and the roe. – Hereward, The Last of the English by Charles Kingsley