Race/Species: Beasts & Monsters
Dates: died: First Age 456
The horse of Fingolfin, High King of the Noldor:
[Filled] with wrath and despair [Fingolfin] mounted upon Rochallor his great horse and rode forth alone, and none might restrain him. He passed over Dor-nu-Fauglith like a wind amid the dust, and all that beheld his onset fled in amaze, thinking that Oromë himself was come: for a great madness of rage was upon him, so that his eyes shone like the eyes of the Valar.
The Silmarillion, Quenta Silmarillion, Ch 18, Of the Ruin of Beleriand and the Fall of Fingolfin
Now Rochallor had stayed beside the king until the end, but the wolves of Angband assailed him, and he escaped from them because of his great swiftness, and ran at last to Hithlum, and broke his heart and died.
The War of the Jewels, HoME Vol 11, Part 1, The Grey Annals
roch 'horse' (Quenya rokko) in Rochallor, Rohan (from Rochand 'land of horses'), Rohirrim; also in Roheryn 'horse of the lady' (cf. heru), Aragorn's horse, which was so called because given to him by Arwen (The Return of the King V 2).
The Silmarillion, Appendix: Elements in Quenya and Sindarin Names
Elena Tiriel 6Sep08