praefectus

Example:Captain Johnson was promoted from the ranks of subalterns to become a senior officer.

Definition:A junior military officer who is subordinate to a superior officer.

Example:The vassal had to swear an oath of loyalty to the lord of the manor.

Definition:A dependent who serves a lord or prince in a feudal relationship, granting allegiance and loyalty in return for protection and support.

Example:She treated him like a servant, demanding constant obedience and work.

Definition:A person who is employed to do the work that the employer needs doing, often including cleaning, cooking, and other domestic tasks.