 According to the Oxford dictionary the definition of the word "privy" in "Privy Council" is an obsolete one meaning "Of or pertaining exclusively to a particular person or persons; one's own", insofar as the Council is personal to the Sovereign.During the reign of Elizabeth I, the Council is recorded under the title "The Queens Majesties Most Honourable Privy-Council".The Sovereign, when acting on the Council's advice, was known as the "King-in-Council" or "Queen-in-Council".