Steed, n. [OE. stede, AS. stēda a stud-horse, war horse, fr. stōd a stud of breeding steeds; akin to G. stute a mare, Icel. stedda, stō, a stud. √163. See Stud of horses.].
A horse, especially a spirited horse for state or war; -- used chiefly in poetry or stately prose. Chaucer. [1913 Webster]
"Mounted upon a hot and fiery steed."
[1913 Webster]