I saw this on a map today:
THE MOST APPROVED MAPS EXTANT;
The Collins dictionary says extant means:
still in existence; surviving
I hadn't heard the word used, by intuition it seemed to come from a day of seafarers 200 years ago. (Perhaps that is part of the marketing). To me it seemed logically replaced by existing.
My question is: What is the appropriate usage of 'extant'?