The other day I was rereading Nancy Mitford on U and non-U which she borrowed from A. Ross. "Denture" is non-upper class; 'false teeth' is upper class "napkin" is upper class, 'serviette' is non-upper class. Etc. "rich" is upper class, 'wealthy' is non-upper class. Then there's the pragmatics: an upper class speaker can SIMULATE 'slumming' by uttering non-upper class (as Uncle Matthew does in "Pursuit of Love", Mitford notes, who says 'denture'). These days, there's inverse snobbery and posh is no longer posh while being born in the 'gutter' as Coward said of Gertie Lawrence is 'classy'. Next is the end of the world, I gather? J. L. Speranza, Bordighera