ahorseback

Adjective

• traveling on horseback
  • a file of men ahorseback passed by
    

Adverb

• on the back of a horse
  • he rode horseback to town
    
  • managed to escape ahorse
    
  • policeman patrolled the streets ahorseback
    

Related words

• Synonyms: 
  ahorse(p) , ahorseback(p) , horseback , ahorse