English
lower chamber
From lower + chamber.
Ancient Greek καμάρα ‘vaulted chamber’
Latin camera ‘a room’
Old French chambre ‘room’
Middle English chambre ‘room’
English chamber
Today it means
noun The lower legislative chamber in a bicameral legislature; in many cases, the one that is directly elected and/or has more practical power, such as the power to raise and spend money.
Language periods are conventional ranges, not dates for this word.
Etymograph / lower chamber