Where does “помирити” come from?

помирити (Serbo-Croatian) comes from Serbo-Croatian по, from Proto-Slavic po, from Proto-Indo-European h₂pó, from Proto-Indo-European h₂epo — from, off, back; off, away; off, from.

помирити (Serbo-Croatian): to reconcile, bring to an agreement or harmony;...

Definitions

to reconcile, bring to an agreement or harmony;...

Ancestry of “помирити”, step by step

помирити traces back through two separate lines of ancestry.

via Serbo-Croatian по

Step	Language	Word	Meaning
1	Serbo-Croatian	по	half; for; over, through, across, in, on
2	Proto-Slavic	po	after; by; at
3	Proto-Indo-European	h₂pó	off, away
4	Proto-Indo-European	h₂epo	from, off, back; off, away; off, from

via Serbo-Croatian ми́рити

Step	Language	Word	Meaning
1	Serbo-Croatian	ми́рити	to reconcile
2	Proto-Slavic	*miriti	to reconcile

Every word from Proto-Indo-European h₂epo →Every word from Proto-Indo-European h₂pó →Every word from Proto-Slavic po →