The word "staffer" is a modern American English compound, formed in the early 20th century. Its first element, "staff," originates from the Old English stæf, meaning a stick or rod, a symbol of authority or support. By the 18th century, "staff" had metaphorically extended to refer to a body of officers assisting a commander, and later to any group of employees. The second element, the agent suffix "-er," is one of the most common in English for forming nouns indicating a person's role or occupation. Thus, the literal construction "one belonging to a staff" logically yields the contemporary meaning of a regular employee, particularly within media or political contexts, emphasizing their role as a constituent member of an organized team.

Structure: staff (group of workers) + er (agent suffix) - staff: From Old English stæf (stick, rod, support), later evolving to mean a body of officers or assistants serving a leader. In this word, it functions as the base noun denoting a collective body of workers. - er: A productive English agent suffix from Old English -ere, used to form nouns denoting a person associated with or performing the action of the base word. Here, it signifies "a person belonging to a staff."