Wordwind, I apologize in advance, but I have to say this--your post spurred me on to think of "rub a dub dub".
[running for my life e]
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Bob's post also got me to thinking, about how words that are apt descriptors in one sense can be used in another context, sometimes losing their appropriateness. He said that Roman baths were "palatial". What did Roman emporers live in? Emporiums?

For some decades now, the word Cadillac has been used in the U.S. to mean top-of-the-line anything, because of the car, which is made by the General Motors company. In Reader's Digest some years ago, there was a tale of a salesman who was attempting to sell an engine component to the Ford Co. He told them his product was "the Cadillac of components". Now--the Ford Co. makes Ford vehicles--period.
He didn't get the sale.