When did Britain become "Great"/

[Katymac]

And what is it Great for?

TIA
KMc

Contrary to popular opinion, the great doesn't mean "fabulous" but rather 'greater' Brittany as opposed to 'lesser' (smaller/nearer) Brittany in France

The Wiki Article says "Great Britain may well be a translation of the French term Grande Bretagne, which is used in France to distinguish Britain from Brittany (in French: Bretagne)"

Thank you