Hasufel was a grey horse of the Rohirrim that initially belonged to Gárulf. When Gárulf was lost in battle, Hasufel was lent to Aragorn by Éomer at the same time Arod was lent to Legolas.

Hasufel served Aragorn well, including being at the Battle of the Hornburg, but was returned to the Rohirrim when the Rangers brought Aragorn's own horse, Roheryn.
Encyclopedia entry originally written by Hathaldir