Where does “edus-” come from?

edus- (Finnish) comes from Finnish etu, from Finnish esi-, from Proto-Finnic eci, from Albanian *etës, from Proto-Albanian *aitatja, from Proto-Indo-European h₁éyti, from Proto-Indo-European h₁ey- — to go.

Ancestry of “edus-”, step by step

Step	Language	Word	Meaning
1	Finnish	etu	advantage; benefit, interest
2	Finnish	esi-	pre-, fore-
3	Proto-Finnic	eci	before; in front
4	Albanian	*etës	—
5	Proto-Albanian	*aitatja	—
6	Proto-Indo-European	h₁éyti	to go, to be going
7	Proto-Indo-European	h₁ey-	to go

Words derived from “edus-”

maalinedus
edusmies
edusosa
edussana
maalineduspeli

Every word from Proto-Indo-European h₁ey- →