accessor
n. countable C2 Proficiency ac·ces·sor
n. a person who helps someone else, especially in a formal or official way. It is an old-fashioned word that you might see in history books or legal documents.
n. a person who provides assistance or support to another, particularly in a formal, legal, or governmental capacity. Often used in historical contexts to describe officials who serve under a higher authority.
The king relied on his most trusted accessor for advice.
In the ancient court, every major decision required the presence of a senior accessor to ensure the law was followed correctly.
The historical records indicate that the monarch's primary accessor was responsible for managing the treasury and overseeing the distribution of grain to the local populace during the famine.