Where does “chamberlainry” come from?

chamberlainry (English) comes from English chamberlain, from Middle English chamberlein, from Anglo-Norman chamberlenc, from Frankish kamarling, from Proto-Germanic kamarlingaz, from Latin camera, from Ancient Greek καμάρα, from Proto-Iranian kamarā- — to bend, to curve.

Ancestry of “chamberlainry”, step by step

StepLanguageWordMeaning
1EnglishchamberlainAn officer in charge of managing the household of...
2Middle Englishchamberlein
3Anglo-NormanchamberlencAlternative form of chamberlein; chamberlain
4Frankishkamarlingchamberlain
5Proto-Germanickamarlingaz
6LatincameraA chamber in its various senses, "including";...
7Ancient GreekκαμάραAnything with an arched cover such as a covered...
8Proto-Iraniankamarā-something curved
9Proto-Iraniankamárati
10Proto-Indo-Iranian*kmárati
11Proto-Indo-Europeankh₂em-to bend, to curve
Every word from Proto-Indo-European kh₂em-