Original: Armorica or Aremorica is the name given in ancient times to the part of Gaul that includes the Brittany peninsula and the territory between the Seine and Loire rivers , extending inland to an indeterminate point and down the Atlantic coast.Merriam-Webster Dictionary , s.v. '' Aremorica '' ; The Free Dictionary , s.v. '' Aremorica '' .
Simplified: Armorica or Aremorica is the name given in ancient times to the part of Gaul that includes the Brittany peninsula and the territory between the Seine and Loire rivers