Where does “αριστοκρατία” come from?

αριστοκρατία (Greek) comes from Ancient Greek ἀριστοκρατίᾱ, from Ancient Greek ἄριστος, from Proto-Indo-European h₂éristos, from Proto-Indo-European h₂er- — to fit, to fix, to put together.

αριστοκρατία (Greek): aristocracy, nobility; aristocracy

Definitions

aristocracy, nobility; aristocracy

Ancestry of “αριστοκρατία”, step by step

αριστοκρατία traces back through two separate lines of ancestry.

via Ancient Greek ἀριστοκρατίᾱ

Step	Language	Word	Meaning
1	Ancient Greek	ἀριστοκρατίᾱ	aristocracy; the rule of the best; the rule of...
2	Ancient Greek	ἄριστος	best (in multivarious contexts)
3	Proto-Indo-European	h₂éristos	fittest, most fitting, most suitable
4	Proto-Indo-European	h₂er-	to fit, to fix, to put together

via Greek άριστος

Step	Language	Word	Meaning
1	Greek	άριστος	excellent, first-rate, thorough; noble

Every word from Proto-Indo-European h₂er- →Every word from Proto-Indo-European h₂éristos →Every word from Ancient Greek ἄριστος →