The story
- Proto-Indo-European*HéHḱus
- Proto-Indo-European*h₁éḱwos
- Proto-Hellenic*íkkʷos
- Ancient Greekῐ̔́ππος (hĭ́ppos)
- Proto-Indo-European*drem-
- Ancient Greekδρόμος (drómos)
- Ancient Greekῐ̔ππόδρομος (hĭppódromos)
- Latinhippodromo
- Frenchhippodrome
- Englishhippodrome
- English todayhippodromist
From hippodrome + -ist.
Etymology from Wiktionary, CC BY-SA 4.0.