This is the 4435th most frequent Polish word.
jeździecki
Equestrian.
The adjective 'jeździecki' is used to describe something related to riding or equestrian activities.
Lubię jeździecki styl ubierania się.
I like the equestrian style of dressing.
Here 'jeździecka' modifies 'school', indicating it's a school focused on equestrian training.
Nowa szkoła jeździecka otworzyła się w moim mieście.
A new riding school has opened in my city.
In this sentence, 'jeździeckie' describes 'saddle', representing that the saddle is specifically for horse riding.