Noah Webster's Dictionary (n.) A horse, especially a spirited horse for state of war; -- used chiefly in poetry or stately prose.

Multi-Version Concordance Steed (2 Occurrences) Song of Songs 1:9 I have compared you, my love, to a steed in Pharaoh's chariots. (WEB JPS ASV DBY) Micah 1:13 Harness the chariot to the swift steed, inhabitant of Lachish. She was the beginning of sin to the daughter of Zion; For the transgressions of Israel were found in you. (WEB JPS ASV DBY RSV)