Where does “otъ” come from?

otъ (Proto-Slavic) comes from Proto-Indo-European éti, from Proto-Indo-European h₁é, from Proto-Indo-European ǵʰe — Postpositional intensifying particle: indeed, at any rate, in fact.

otъ (Proto-Slavic): from, away from; originating from, starting from...

Definitions

from, away from; originating from, starting from...

Ancestry of “otъ”, step by step

Step	Language	Word	Meaning
1	Proto-Indo-European	éti	beyond; over
2	Proto-Indo-European	h₁é	and, then
3	Proto-Indo-European	ǵʰe	Postpositional intensifying particle: indeed, at any rate, in fact

Words derived from “otъ”

od
od
ode
odo-
от
отъ
ѿ
otьcь
od
отъ
од
wót
від
od
од
ot
ot
vit
wôd
òd
od
od
otec
отец

Every word from Proto-Indo-European ǵʰe →Every word from Proto-Indo-European h₁é →Every word from Proto-Indo-European éti →