DuckCorp Dico

Found one definition

1.                 From German - English Ding/FreeDict dictionary ver. 1.9-fd1:
                   
   
   
                   
                     
   Ross /rˈɔs/ <neut, n, sg>
   horse <n>, steed <n>, thoroughbred <n>
         "sich aufs hohe Ross setzen"  - give oneself airs
         "auf dem hohen Ross sitzen"  - be on one's high horse
    see: Rosse, Rösslein, Rösschen, Rössl, Rössle, Rössli, Rössel