What is "interamnia"

Interamnia – also, Interamna (Greek: ) or Interamnium (Greek: ) – is an ancient Latin placename, meaning "between rivers". There were at least three towns of ancient Italy so named:

• Interamna Nahars (or Nahartium), the modern Terni: the rivers are the Nera and the Tiber
• Interamna Praetutiana (or Interamna Praetutianorum), the modern Teramo: the rivers are the Tordino and the Vezzola
• Interamna Lirinas, no modern successor, on the Liri River