cabinet

French cabinet was a diminutive of cabine, a small room or private chamber. The word entered English in the 16th century meaning a small, private room used for study or for keeping valuable objects. The cabinet of curiosities — Wunderkammer — stored specimens, artworks, and rarities in just such a room. Privacy and intimacy defined the original cabinet.

The political sense emerged in the 17th century English court. Charles I held private meetings with selected ministers in his personal cabinet — the small room adjacent to his bedchamber. These meetings were distinct from formal Privy Council sessions and more intimate. The group became known as the Cabinet Council, then simply the Cabinet. The room gave its name to the body.

Cabinet government developed as a constitutional convention in Britain during the 18th century. Robert Walpole, serving from 1721 to 1742, is considered the first Prime Minister partly because he consolidated Cabinet governance — the practice of collective ministerial responsibility, decisions made collectively by the group rather than by the monarch alone. Parliament had taken the room's name and made it constitutional.

Today cabinet means a body of senior ministers responsible to parliament or president; it also still means a piece of furniture for storing things. Both senses preserve the origin: a private, organized space where selected individuals keep and decide what is valuable.