Where does “είσοδος” come from?

είσοδος (Greek) comes from Ancient Greek εἴσοδος, from Ancient Greek εἰσ-, from Ancient Greek εἰς, from Proto-Hellenic ens, from Proto-Indo-European h₁én — in.

είσοδος (Greek): entrance, way in

Definitions

entrance, way in

Ancestry of “είσοδος”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	εἴσοδος	way in, entrance, entry; an act of going in,...
2	Ancient Greek	εἰσ-	into
3	Ancient Greek	εἰς	into
4	Proto-Hellenic	ens	—
5	Proto-Indo-European	h₁én	in

Every word from Proto-Indo-European h₁én →Every word from Proto-Hellenic ens →Every word from Ancient Greek εἰς →