Where does “Bithynien” come from?

Bithynien (German) comes from Latin Bīthȳnia, from Ancient Greek Βιθυνία, from Ancient Greek -ῐ́ᾱ, from Proto-Indo-European -íh₂, from Proto-Indo-European -h₂ — Creates collective nouns, which refer to groups...

Ancestry of “Bithynien”, step by step

StepLanguageWordMeaning
1LatinBīthȳnia
2Ancient GreekΒιθυνία
3Ancient Greek-ῐ́ᾱ{{l|en|-ia}}; "suffix forming abstract feminine...
4Proto-Indo-European-íh₂
5Proto-Indo-European-h₂Creates collective nouns, which refer to groups...
Every word from Proto-Indo-European -h₂Every word from Ancient Greek -ῐ́ᾱEvery word from Ancient Greek Βιθυνία