Jacobean means belonging to, or typical of, Britain between 1603 and 1625, when James I was king of England (he was also James VI of Scotland). Houses, heavy carved furniture, and some plays from that time are called Jacobean. The word comes from Jacobus, the Latin form of James, by way of New Latin Iacobaeus, then English -an. It is a history and art word, quite formal: you meet it in museums and literature class more than in the street. Shakespeare’s later years overlap this reign, which is why the word turns up next to his name. Though actually, it is easy to mix the Jameses. Jacobean is James I’s time. It is not Victorian (Queen Victoria, much later), not Elizabethan (Elizabeth I, just before), and not Jacobite — that is a later political group around a different James.