Where does “Парфия” come from?

Парфия (Russian) comes from Ancient Greek Παρθία, from Ancient Greek -ῐ́ᾱ, from Proto-Indo-European -íh₂, from Proto-Indo-European -h₂ — Creates collective nouns, which refer to groups...

Ancestry of “Парфия”, step by step

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

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