What is another word for master-at-arms?
Pronunciation: [mˈastəɹatˈɑːmz] (IPA) 
Master-at-Arms is a term used to describe someone who is in charge of maintaining discipline on board a ship or military installation. Synonyms for Master-at-Arms include the following words: constable, marshal, policeman, law enforcer, security guard, and officer. These words have been around for a long time and have been used to describe different aspects of security. For example, constable is derived from the Latin word "comes stabuli" and originally referred to someone who had the responsibility of caring for horses. As the role of the constable changed, it began to refer to someone who was also responsible for maintaining law and order. Despite the slight differences, all of these synonyms for Master-at-Arms ultimately refer to someone who is responsible for maintaining order and safety.
