I'm pretty sure they're not uniquely Americanisms, and thatwe got those from the old country, where there was the landed gentry and literal lords and kings and

I'm pretty sure they're not uniquely Americanisms, and thatwe got those from the old country, where there was the landed gentry and literal lords and kings and queens in the upper class, with peasants, serfs, in the lower classes. It wasn't until the French grew fed up with the system that it underwent a revolutionary change. There's still a House of Lords (upper class) and a House of Commons (lower class) in the UK.