Her pleasure in the walk must arise from the exercise and the day, from the view of the last smiles of the year upon the tawny leaves, and withered hedges, and from repeating to herself some few of the thousand poetical descriptions extant of autumn, that season of peculiar and inexhaustible influence on the mind of taste and tenderness, that season which had drawn from every poet, worthy of being read, some attempt at description, or some lines of feeling.
There are no more uses of "extant" in the book.
Show samples from other sources
But as you know, to do this with extant technology would have been prohibitively expensive for the average person.
Dave Eggers -- The Circle
"That was one of only five extant copies!" he moaned.