Where did the military brig term come from?

The term "military brig" originates from the Word "brigade," which refers to a unit of soldiers. The term "brig" itself is derived from the Latin "briga," meaning a "hill" or "high ground," and was historically used to describe a fortified position or a stronghold. In naval contexts, a "brig" also refers to a type of sailing vessel, which further influenced its usage in military terminology. Over time, "brig" has come to denote specific military structures, such as brigades or facilities for detaining military personnel.