Here are some tips about how to preserve the freshness of your stories by avoiding words that will disappear from the language. (You especially might want to check your trunk novels.)

Scientists at the University of Reading have discovered that 'I', 'we', 'who' and the numbers '1', '2' and '3' are amongst the oldest words, not only in English, but across all Indo-European languages. What's more, words like 'squeeze', 'guts', 'stick', 'throw' and 'dirty' look like they are heading for history's dustbin - along with a host of others....

Thanks to the recent availability of an IBM supercomputer, they've been able to look back 30,000 years and predict winners and losers of the English language.