[horse] Orby (1904–1918) was an Anglo-Irish Thoroughbred racehorse and sire. In a racing career which lasted from 1906 to 1907 he ran seven times and won four races. In 1907 he became the first Irish-trained horse, and the third owned by an American, to win the Epsom Derby. In the same year, he became the first horse to complete the Epsom... Found on http://en.wikipedia.org/wiki/Orby_(horse)
Orb'y adjective [ From 2d Orb .] Orblike; having the course of an orb; revolving. [ Obsolete] ' Orby hours.' Chapman. Found on http://www.encyclo.co.uk/webster/O/28