*hopeful glance at all Catholics present*
I was just wondering why the Annales Cambraie refers to the Battle of Badon as Bellum Badonis, but the Battle of Camlann as Gueith Camlann. Surely the 'battle' word should be the same.
Gueith is ridiculously close to an old Welsh word though. It would have my eyebrows in my hairline, if the rest of the text wasn't in Latin (thus suggesting this is a Latin word too).
That's the 954CE version, by the way. The later manuscripts substitute Bellum Camlan instead.