On-rid

According to the Old English Dictionary:

on-rid

a riding horse, steed, mount :-- Ǽlcon híredmen his onrid þe hé álǽned hæfde, Cht. Crw. 23, 25. See p. 132. [Dauid . . . bead heom ꝥ heo of heoræ anride lihtæn sceoldon, H. R. N. 18, 29. Cf. P. 38.] on-rid