' what are these people called,those who live across the narrow sea to the north ?'
Pretannikai was how he wrote down the reply,'they bare the Pretannikai,and the island is called Pretannike'.Over the following three centuries this word changed only slightly, to be noted by Julius Caesar as Britannia.When the Romans finally organized an invasion in AD 43 and colonized southern Britannia,the name stuck through nearly 400 years of occupation,and it has stuck in various forms ever since.

Regards