Where does “ὡσάν” come from?

ὡσάν (Ancient Greek) comes from Ancient Greek ἄν, from Ancient Greek ἐάν, from Ancient Greek εἰᾰ́ν, from Ancient Greek εἰ, from Proto-Indo-European h₁ey.

Ancestry of “ὡσάν”, step by step

ὡσάν traces back through two separate lines of ancestry.

via Ancient Greek ἄν

Step	Language	Word	Meaning
1	Ancient Greek	ἄν	Expresses potentiality or conditionality;...
2	Ancient Greek	ἐάν	if (for more depth see εἰ and ἄν; Used in place...
3	Ancient Greek	εἰᾰ́ν	—
4	Ancient Greek	εἰ	if
5	Proto-Indo-European	h₁ey	—

via Ancient Greek ὡς

Step	Language	Word	Meaning
1	Ancient Greek	ὡς	the introduction to similes; to qualify a general...
2	Ancient Greek	-ως	Added to the stem of adjectives or pronouns to...
3	Proto-Indo-European	-ós	Creates agent nouns from verb stems, denoting...

Every word from Proto-Indo-European h₁ey →Every word from Ancient Greek εἰ →Every word from Ancient Greek εἰᾰ́ν →