Where does “Archaeopteryx” come from?

Archaeopteryx (Translingual) comes from Ancient Greek πτέρυξ, from Ancient Greek πτερόν, from Proto-Indo-European péth₂r̥, from Proto-Indo-European peth₂- — to spread out; to fly.

Archaeopteryx (Translingual): genus|known from fossils and widely accepted as the earliest and most primitive known bird}}

Definitions

genus|known from fossils and widely accepted as the earliest and most primitive known bird}}

Ancestry of “Archaeopteryx”, step by step

Archaeopteryx traces back through two separate lines of ancestry.

via Ancient Greek πτέρυξ

Step	Language	Word	Meaning
1	Ancient Greek	πτέρυξ	wing; feathers; fins
2	Ancient Greek	πτερόν	feather; wing; Any winged creature
3	Proto-Indo-European	péth₂r̥	wing; feather
4	Proto-Indo-European	peth₂-	to spread out; to fly

via Ancient Greek ἀρχαῖος

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

Every word from Proto-Indo-European peth₂- →Every word from Proto-Indo-European péth₂r̥ →Every word from Ancient Greek πτερόν →