Where does “poreo” come from?

poreo (Esperanto) comes from German Porree, from Middle French porrée, from Latin porrum, from Proto-Indo-European pr̥so- — leek.

poreo (Esperanto): leek

Definitions

Step	Language	Word	Meaning
1	German	Porree	leek
2	Middle French	porrée	—
3	Latin	porrum	leek; chives
4	Proto-Indo-European	pr̥so-	leek

poreo — Etymology, Origin & Word History | Etymology Explorer