Carry, in her rare moments of prosperity, became so expansively maternal that Miss Bart sometimes wondered whether, if she could ever get time and money enough, she would not end by devoting them both to her daughter.
The hotel being on the edge of a fashionable neighbourhood, the price of the few square feet she was to occupy was considerably in excess of her means; but she found a justification for her dislike of poorer quarters in the argument that, at this particular juncture, it was of the utmost importance to keep up a show of prosperity.
There are no more uses of "prosperity" in the book.
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We are hoping for peace and prosperity.
...during a former period of prosperity when its possessor was being paid $30 per week.