Where does “upper chamber” come from?

upper chamber (English) comes from English chamber, from Middle English chambre, from Old French chambre, from Latin camera, from Ancient Greek καμάρα, from Proto-Iranian kamarā-, from Proto-Iranian kamárati, from Proto-Indo-Iranian *kmárati — to bend, to curve.

upper chamber (English): The upper legislative chamber in a bicameral legislature; usually smaller and having more restricted power than the lower chamber

Definitions

  1. The upper legislative chamber in a bicameral legislature; usually smaller and having more restricted power than the lower chamber

Ancestry of “upper chamber”, step by step

upper chamber traces back through two separate lines of ancestry.

via English chamber

StepLanguageWordMeaning
1EnglishchamberA room or set of rooms, "particularly"; A...
2Middle Englishchambreroom; chamber; Alternative form of caumber
3Old Frenchchambreroom; chamber; bedroom, sleeping quarters
4LatincameraA chamber in its various senses, "including";...
5Ancient GreekκαμάραAnything with an arched cover such as a covered...
6Proto-Iraniankamarā-something curved
7Proto-Iraniankamárati
8Proto-Indo-Iranian*kmárati
9Proto-Indo-Europeankh₂em-to bend, to curve

via English upper

StepLanguageWordMeaning
1EnglishupperAt a higher level, rank or position; Situated on...
2Middle Englishupper
Every word from Proto-Indo-European kh₂em-
upper chamber — Etymology, Origin & Word History | Etymology Explorer