α. 1800s achter-rider, 1800s achterryder, 1800s agter-rider, 1800s agter-ruiter, 1800s agter-ruyter, 1800s agterryder, 1800s– achter-ryder, 1800s– agter-ryder, 1900s– achterrijder, 1900s– achter-ruiter.
β. 1900s– agter-rijer, 1900s– agterryer, 1900s– agter-ryer.