equitation
Concise Oxford English Dictionary © 2008 Oxford University Press:
equitation /ˌɛkwɪˈteɪʃ(ə)n/
▶noun formal the art and practice of horse riding.
– origin C16: from Fr. équitation or L. equitatio(n-), from equitare ‘ride a horse’, from eques, equit- ‘horseman’ (from equus ‘horse’).
'equitation' also found in these Oxford entries:

