what does equestrian mean
| Filed Under: Language Leave a Comment. Equestrian is a word used to describe a competitive horseback rider and entered English in 1656 as meaning a âknight on horseback.â. The horse has evolved over fifty million years to become the majestic animal exhibited at various competitions today.Equestrian is from the Latin word for horse, which is equus. Filed Under: Language Leave a Comment. Equestrian is a word used to describe a competitive horseback rider and entered English in 1656 as meaning a âknight on horseback.â. The horse has evolved over fifty million years to become the majestic animal exhibited at various competitions today.