Etymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Hellenic *ə- Ancient Greek ἀ- (a-) Ancient Greek ἄρχω (árkhō) Ancient Greek -ᾱ (-ā) Ancient Greek -η (-ē) Ancient Greek ἀρχή (arkhḗ) Ancient Greek -ος (-os) Ancient Greek ἄναρχος (ánarkhos) Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-i-eh₂ Proto-Hellenic *-íā Ancient Greek -ῐ́ᾱ (-ĭ́ā) Ancient Greek…