postilion
/pɒˈstɪljən/(亦作postillion)
noun
- a person who rides the leading nearside (left-hand side) horse of a team or pair drawing a coach or carriage, especially when there is no coachman左马驭者。
词源
mid 16th cent. （in the sense 'forerunner acting as guide to the post-horse rider'）： from French postillon, from Italian postiglione 'post-boy', from posta （see POST2）.