Where does “arzet” come from?

arzet (Middle High German) comes from Old High German arzat, from Latin archīāter, from Ancient Greek ἀρχιατρός, from Ancient Greek ἀρχι-, from Ancient Greek ἄρχω, from Proto-Indo-European h₂ergʰ- — to begin; to command, rule; to begin, rule,...

Ancestry of “arzet”, step by step

Step	Language	Word	Meaning
1	Old High German	arzat	medical doctor
2	Latin	archīāter	physician, especially a chief physician of a ruler
3	Ancient Greek	ἀρχιατρός	chief physician
4	Ancient Greek	ἀρχι-	denotes primary importance or authority
5	Ancient Greek	ἄρχω	To begin; To lead, rule, govern, command; To be...
6	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 ἀρχι- →