contubernial
/kɒntəˈbɛrniəl, -ˈbɜːrniəl/Definitions
1. adjective
relating to or characteristic of a contubernium, a group of eight soldiers in ancient Rome
“The contubernial bond between the soldiers helped them to navigate the treacherous terrain.”
2. noun
a group of eight soldiers in ancient Rome
“The contubernial unit was tasked with securing the perimeter of the camp.”