you can do it by report builder (or whatever "matching" tool you like to compare page names).
i would do the following first:
1) new workspace project with time range of last month (or whatever is suitable for your graveyard definition)
2) add "page" as dimension and "page views" as metric
3) add a second column with "page views" and a long time range (eg. 3 years). order asc by this col
this will show you all pages that had at least one page view in the long time range - hopefully all graveyard pages had at least one hit and shiw up at the top of the report ...
faster than report builder and manual comparison, but not complete ...