Where does “фотобумага” come from?

фотобумага (Russian) comes from Russian бума́га, from Italian bambagia, from Medieval Latin bombacium.

фотобумага (Russian): photopaper

Definitions

Step	Language	Word	Meaning
1	Russian	бума́га	paper
2	Italian	bambagia	cotton wool
3	Medieval Latin	bombacium	—

фотобумага — Etymology, Origin & Word History | Etymology Explorer