The term "du Barry" refers to a specific historical figure rather than a general English word. It is a noun that is used in relation to Madame de Pompadour, who was an influential mistress of King Louis XV of France. Her full name was Jeanne Bécu, and she was known as Madame du Barry. Here’s a simplified explanation:
In summary, "du Barry" is a historical reference to a significant figure in French history, known for her influence and tragic fate.