from the GNU version of the Collaborative International Dictionary of English
- n. the third great officer in the British court, having the management of the royal stables, etc. In ceremonial cavalcades he rides next to the sovereign.
Sorry, no etymologies found.
His lordship having finished his affairs in Ireland, he returned to London, was made master of the horse to the dutchess of York, and married the lady Frances, eldest daughter of the earl of Burlington, and widow of colonel Courtnay.
For Domesday and the Chronicles show that he was the son of an elder Earl Ralph, who had been STALLER or master of the horse in Edward's days, and who is expressly said to have been born in Norfolk.