Where does “euedaphic” come from?

euedaphic (English) comes from English eu-, from Ancient Greek εὖ, from Ancient Greek ἐΰς, from Proto-Hellenic ehu-, from Proto-Indo-European h₁su-, from Proto-Indo-European h₁wes- — good; to be cheerful, happy; to eat, to feast.

euedaphic (English): Living an entire life cycle exclusively within the deeper layers of the soil profile

Definitions

Living an entire life cycle exclusively within the deeper layers of the soil profile

Ancestry of “euedaphic”, step by step

Step	Language	Word	Meaning
1	English	eu-	good, well; true, genuine
2	Ancient Greek	εὖ	well
3	Ancient Greek	ἐΰς	good, brave, noble
4	Proto-Hellenic	ehu-	good
5	Proto-Indo-European	h₁su-	good
6	Proto-Indo-European	h₁wes-	good; to be cheerful, happy; to eat, to feast

Every word from Proto-Indo-European h₁wes- →Every word from Proto-Indo-European h₁su- →Every word from Proto-Hellenic ehu- →