Steed
Steed (stēd) , noun
[Old English stede, Anglo-Saxon stēda a stud-horse, war horse, from stōd a stud of breeding steeds; akin to German stute a mare, Icelandic stedda, stōe, a stud. r163. See Stud of horses.]
A horse, especially a spirited horse for state or war; -- used chiefly in poetry or stately prose.
A knight upon a steed.
Mounted upon a hot and fiery steed.