janissary

noun, plural jan·is·sar·ies.

1. (often initial capital letter) a member of an elite military unit of the Turkish army organized in the 14th century and abolished in 1826 after it revolted against the Sultan.
2. (often initial capital letter) any soldier in the Turkish army.
3. a member of any group of loyal guards, soldiers, or supporters.

noun plural -saries or -zaries

1. an infantryman in the Turkish army, originally a member of the sovereign’s personal guard, from the 14th to the early 19th century