equestrian
Concise Oxford English Dictionary © 2008 Oxford University Press:
equestrian /ɪˈkwɛstrɪən, ɛ-/
▶adjective
- 1 relating to horse riding.
- 2 depicting or representing a person on horseback.
– origin C17: from L. equester ‘belonging to a horseman’ (from eques ‘horseman, knight’, from equus ‘horse’) + -ian.
'equestrian' also found in these Oxford entries:

