Chamberlein

Part of speech: noun

Definitions

1. An official who oversees the domestic affairs and finances of a royal court or great household
2. A senior attendant responsible for managing the chambers and household staff of a nobleman or monarch
3. An officer entrusted with the administration of a palace or castle's domestic operations and resources

Etymology: In the Roman world, "camera" meant a vaulted or arched room, borrowed from Greek "kamara," meaning vault. Late Latin then formed "camerarius," an official who managed a ruler's private rooms and the valuables kept in them. That official's job, handling money and treasure rather than cleaning, is what makes the word surprising. The Old French descendant "chamberlenc" reached England, and English had "chamberlain" in use before the Norman Conquest, as the Old English "camerling." Over the centuries the title moved far from its domestic roots. A medieval chamberlain could be a powerful household officer, and in some kingdoms the post carried serious political weight. The modern Lord Chamberlain, who oversees the royal household's ceremonial and theatrical affairs, still carries the title. The standard spelling is "chamberlain," with "-ain" rather than "-ein." Your spelling appears to be a common slip.