Where does “piscātrīx” come from?

piscātrīx (Latin) comes from Latin piscor, from Latin Piscis, from Proto-Indo-European *peysk-.

Ancestry of “piscātrīx”, step by step

Step	Language	Word	Meaning
1	Latin	piscor	I fish
2	Latin	Piscis	—
3	Proto-Indo-European	*peysk-	—

piscātrīx — Etymology, Origin & Word History | Etymology Explorer