or postillion noun see: post Date: circa 1611 one who rides as a guide on the near horse of one of the pairs attached to a coach or post chaise especially without a coachman
POSTILION
Meaning of POSTILION in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012