Where does “Abfallprodukt” come from?

Abfallprodukt (German) comes from German Produkt, from Latin productum, from Latin prōdūcere.

Abfallprodukt (German): waste product

Definitions

Step	Language	Word	Meaning
1	German	Produkt	product
2	Latin	productum	that which is brought forward or produced;...
3	Latin	prōdūcere	—

Abfallprodukt — Etymology, Origin & Word History | Etymology Explorer