Where does “Brytenland” come from?

Brytenland (Old English) comes from Old English Bryten, 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 “Brytenland”, step by step

Brytenland traces back through two separate lines of ancestry.

via Old English Bryten

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

via Old English land

Step	Language	Word	Meaning
1	Old English	land	land; a country; region within a country:...
2	Proto-West Germanic	land	land, area of ground
3	Proto-Germanic	landą	land, area of ground
4	Proto-Indo-European	lendʰ-	land, heath; loins

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