Where does “Arqueano” come from?

Arqueano (Portuguese) comes from Ancient Greek ἀρχή, from Ancient Greek ἄρχω, from Proto-Indo-European h₂ergʰ- — to begin; to command, rule; to begin, rule,...

Arqueano (Portuguese): Archaean geologic eon from about 3,800 to 2,500 million years ago

Definitions

Archaean geologic eon from about 3,800 to 2,500 million years ago

Ancestry of “Arqueano”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	ἀρχή	beginning, origin; sovereignty, dominion,...
2	Ancient Greek	ἄρχω	To begin; To lead, rule, govern, command; To be...
3	Proto-Indo-European	h₂ergʰ-	to begin; to command, rule; to begin, rule,...

Every word from Proto-Indo-European h₂ergʰ- →Every word from Ancient Greek ἄρχω →Every word from Ancient Greek ἀρχή →