Where does “māter” come from?

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

Ancestry of “māter”, step by step

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