Eboracum or Eboracvm?

Roman writing.
The Vindolanda tablets: discovered at the site of a Roman fort in Vindolanda, northern England. Photo credit: Wikipedia.

Eboracum is the Roman name for York, U.K. The Romans spelled Eboracum with a ‘v’ as in Eboracvm and this causes some modern-day confusion over the name. Of course, it’s pronounced with a ‘u’ but to keep my Eboracum series books truer to the actual way it was, I use Eboracvm on the covers. I use both Eboracum and Eboracvm on the electronic titles.