Horsa

According to the Old English Dictionary:

an;

Horsa

m. Horsa :-- On hiera dagum Hengest and Horsa gesóhte Bretene, Chr. 449; Erl. 12, 1. Hér Hengest and Horsa fuhton wið Wyrtgeorne ðam cyninge in ðære stówe ðe is gecueden Agælesþrep and his bróður Horsan man ofslóg, 455; Erl. 12, 13. horsa