FauXgnus Al(_)Syn
mid 16th century (in rota (sense 2 of the noun)): from Latin, literally ‘wheel’.
late Middle English: from Old French cambre, dialect variant of chambre ‘arched’, from Latin camurus ‘curved inwards’.
chamber
Middle English (in the sense ‘private room’): from Old French chambre, from Latin camera ‘vault, arched chamber’, from Greek kamara ‘object with an arched cover’.