jackman
n. countablen. a soldier or servant who wears a protective leather jacket. This word is very old and you will mostly see it in history books or stories about the past.
n. an armed retainer or soldier wearing a jack, which is a type of protective leather tunic. Primarily encountered in historical fiction or academic texts concerning the late medieval and early modern periods.
The jackman stood guard at the castle gate.
The border lord arrived with a small troop of jackmen to enforce his claim on the land.
In the historical chronicles of the Scottish Borders, the jackman is depicted as a versatile light cavalryman, valued for his mobility and the protection offered by his quilted leather doublet.
Typically refers to a specific historical role; rarely used in modern contexts outside of period-accurate descriptions.