Wikipedia
Petuaria (or Petuaria Parisorum) was originally a Roman fort situated where the town of Brough-on-Humber in the East Riding of Yorkshire now stands. Petuaria means something like 'quarter' or 'fourth part', incorporating the archaic Brythonic *petuar, 'four' (compare modern Welsh pedwar).
It was founded in 70 AD and abandoned in about 125. The adjacent civitas (civil town), ferry-crossing and (attested) port which grew over and replaced the fort survived until about 370, and was probably the capital of the Celtic tribe called the Parisi. Petuaria marked the southern end of the Roman road known now as Cade's Road, which ran roughly northwards for a hundred miles to Pons Aelius (modern day Newcastle upon Tyne). The section from Petuaria to Eboracum ( York) was also the final section of Ermine Street.