Where does “vuokraaminen” come from?

vuokraaminen (Finnish) comes from Finnish vuokrata, from Finnish vuokra, from Proto-Germanic wōkraz, from Proto-Indo-European h₂ewg-, from Proto-Indo-European h₂weg-, from Proto-Indo-European h₂ug-.

Ancestry of “vuokraaminen”, step by step

Step	Language	Word	Meaning
1	Finnish	vuokrata	to rent; to let
2	Finnish	vuokra	lease; rent
3	Proto-Germanic	wōkraz	gain; increase; yield; offspring; interest; usury
4	Proto-Indo-European	h₂ewg-	to increase, to enlarge
5	Proto-Indo-European	h₂weg-	to increase, to enlarge
6	Proto-Indo-European	h₂ug-	—

Every word from Proto-Indo-European h₂ug- →Every word from Proto-Indo-European h₂weg- →Every word from Proto-Indo-European h₂ewg- →