Romes

Rome +‎ -s (“plural suffix”).

Romes

1. (archaic) The city of Rome in Italy and the city of Constantinople (the "New Rome") taken together; the empire(s) ruled by these cities.
   • 1603, Richard Knolles, The Generall Historie of the Turkes, section 13:

     Yet haue the Sarasins attempted both Romes; they haue besieged Constantinople, and haue wasted... the Sea coasts of Italy.

   • 1999, G. Vallée, Shaping of Christianity, X 203:

     The weakening of the two Romes created the space for the emergence of both the Holy Roman Empire of the Franks and the Islamic Empire.

• Mores, Morse, Moser, meros, mesor, moers, mores, morse, omers, s'more, smore, somer