Where does “ἔξοδος” come from?

ἔξοδος (Ancient Greek) comes from Ancient Greek ἐξ, from Ancient Greek Ὕπνος, from Proto-Hellenic húpnos, from Proto-Indo-European supnós, from Proto-Indo-European swóp-r̥ ~ swép-n̥s, from Proto-Indo-European swep- — to sleep.

ἔξοδος (Ancient Greek): departure, leaving; a way out, exit; divorce

Definitions

departure, leaving; a way out, exit; divorce

Ancestry of “ἔξοδος”, step by step

ἔξοδος traces back through two separate lines of ancestry.

via Ancient Greek ἐξ

Step	Language	Word	Meaning
1	Ancient Greek	ἐξ	Alternative form of ἐκ; out; from, out of
2	Ancient Greek	Ὕπνος	Hypnos, the Greek mythological god of sleep
3	Proto-Hellenic	húpnos	—
4	Proto-Indo-European	supnós	sleep; death
5	Proto-Indo-European	swóp-r̥ ~ swép-n̥s	—
6	Proto-Indo-European	swep-	to sleep

via Ancient Greek ὁδός

Step	Language	Word	Meaning
1	Ancient Greek	ὁδός	threshold; road, path, way; journey, trip,...
2	Proto-Hellenic	*hodós	—

Words derived from “ἔξοδος”

Every word from Proto-Indo-European swep- →Every word from Proto-Indo-European swóp-r̥ ~ swép-n̥s →Every word from Proto-Indo-European supnós →