Words can have no single fixed meaning. Like wayward electrons, they can spin away from their initial orbit and enter a wider magnetic field. No one owns them or has a proprietary right to dictate how they will be used.
“In 1930s mysteries, all sorts of motives were credible which aren't credible today, especially motives of preventing guilty sexual secrets from coming out. Nowadays, people sell their guilty sexual secrets.”
“Yes, prudently invested contributions to the Social Security fund may bring greater dividends, but those contributions would also face a greater risk. It would be like gambling. We should not gamble with the investments and the future of the citizens of this land.”