Where does “biprodukt” come from?

biprodukt (Norwegian Nynorsk) comes from Norwegian Nynorsk produkt, from German Produkt, from Latin productum, from Latin prōdūcere.

biprodukt (Norwegian Nynorsk): by-product

Definitions

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

biprodukt — Etymology, Origin & Word History | Etymology Explorer