Knowing a term and its being obsolete in common usage are different things. Are you really prepared to declare yourself common, UG? ;)

Yep. We call them "bags."

Not so much inarguable as arguable, for you're willing, under the impression that you know it all (curable only by experience over time) to try arguing it. But I don't see validity in your basic premise. I reach deep when I speak, and that includes deeply into time, and I am not going to tailor my speech to suit persons who strike me as too shallow. They shall come to my level, not I to theirs. Thus they become better (for more knowledgeable usually is) men, and I am not called upon to practice what I can only see as personal deterioration.

Or your message, whatever it may be, potentially gets lost by readers who have no idea what you are saying.

I repay diligent reading; I am not an obscurantist, nor inarticulate. If I make your mind work in new directions, so much the better, no?

Not that thread drift is against the rules, but what is a thread named New Oxford Dictionary doing becoming It's All About Urbane Guerrilla anyway?