Where does “Britannia Maior” come from?

Britannia Maior (Latin) comes from Latin Britannia, from Ancient Greek Βρεττανία, from Ancient Greek -ῐ́ᾱ, from Proto-Indo-European -íh₂, from Proto-Indo-European -h₂ — Creates collective nouns, which refer to groups...

Ancestry of “Britannia Maior”, step by step

Britannia Maior traces back through two separate lines of ancestry.

via Latin Britannia

Step	Language	Word	Meaning
1	Latin	Britannia	Britain
2	Ancient Greek	Βρεττανία	the British Isles
3	Ancient Greek	-ῐ́ᾱ	{{l\|en\|-ia}}; "suffix forming abstract feminine...
4	Proto-Indo-European	-íh₂	—
5	Proto-Indo-European	-h₂	Creates collective nouns, which refer to groups...

via Latin māior

Step	Language	Word	Meaning
1	Latin	māior	ancestors, forefathers; advanced in years, the aged; the elders
2	Latin	magnus	large, big; great; important
3	Proto-Indo-European	meǵh₂-	big, great; great; big, stour, great

Words derived from “Britannia Maior”

Grant Bretaigne

Every word from Proto-Indo-European -h₂ →Every word from Ancient Greek -ῐ́ᾱ →Every word from Ancient Greek Βρεττανία →