So We find words and name with “Gu” or “Gw”, that mutated to a broad “W” like “guard” and “ward” next mutation would go from “W” to “B” We have “Bard” which is a piece of armor for horses. Gauffre, Waffle and Baffle (architecture, sound baffle) and Guillaume became William,shorten Guy, Will, Bill.

That is also a feature of the Irish Language, they’ll say my vike for my bike. The mutation also exist in Welsh which is from the Brythonic language family. In the Cornish and Breton language there are some difference we also find in German and Alsace language. Like the number Five, Funf and Fenf Pump and Pemp. Knowing that the Belgium were a Celtic tribe that was living next to the German, and Knowing that some of them moved to the British Island, the creole language to a German for via the Celtic Fir Bolg may had an influence the the development of the later Frisian, Franc, and English Language, Because these languages were rather brother and almost no translation was needed to unederstand one an other. Therefore, when the Carolingians send spies they actually didn’t need to learn an other language.