Ahorseback

adv.

1.

On horseback. Two suspicious fellows ahorseback. - Smollet.

Adj.	1.	ahorseback - traveling on horseback; "a file of men ahorseback passed by" Synonyms: ahorse
Adv.	1.	ahorseback - on the back of a horse; "he rode horseback to town"; "managed to escape ahorse"; "policeman patrolled the streets ahorseback" Synonyms: ahorse, horseback

ahorse, horseback