equestrian
Of horseback riding or horseback riders.
Example
“They were an equestrian people.”
Other meanings
Of or relating to the ancient Roman class of equites.
Word history
From Latin "equester" (of or pertaining to equestrians/cavalry).
Where this comes from
This definition is adapted from “equestrian” on Wiktionary, by its contributors, published under CC BY-SA 4.0. This page is published under the same licence.