dun

dun (http://definr.com/dun)

     adj : of a dull grayish brown to brownish gray color; "the dun and
           dreary prairie"
     n 1: horse of a dull brownish gray color
     2: a color varying around light grayish brown; "she wore a dun
        raincoat" [syn: grayish brown, greyish brown, fawn]
     v 1: annoy constantly [syn: torment, rag, bedevil, crucify,
           frustrate]
     2: persistently ask for overdue payment; "The grocer dunned his
        customers every day by telephone"
     3: cure by salting; "dun codfish"
     4: make a dun color