Where does “madrastra” come from?

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

madrastra (Catalan): stepmother

Definitions

stepmother

Ancestry of “madrastra”, step by step

Step	Language	Word	Meaning
1	Late Latin	mātrastra	—
2	Latin	māter	mother female parent
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 h₂ergʰ- →Every word from Ancient Greek ἄρχω →Every word from Latin māter →