Where does “опећи” come from?

опећи (Serbo-Croatian) comes from Serbo-Croatian пе̏ћи, from Proto-Slavic peťi, from Proto-Balto-Slavic pektei, from Proto-Indo-European pékʷeti, from Proto-Indo-European pekʷ-, from Proto-Indo-European h₃-ép-kʷ-.

опећи (Serbo-Croatian): to burn, parch cause a burn; to nettle; to burn...

Definitions

to burn, parch cause a burn; to nettle; to burn...

Ancestry of “опећи”, step by step

опећи traces back through two separate lines of ancestry.

via Serbo-Croatian пе̏ћи

Step	Language	Word	Meaning
1	Serbo-Croatian	пе̏ћи	to bake
2	Proto-Slavic	peťi	to bake; to get motivated, to put effort into, to...
3	Proto-Balto-Slavic	pektei	to bake
4	Proto-Indo-European	pékʷeti	to be cooking; to ripen
5	Proto-Indo-European	pekʷ-	to cook; to ripen
6	Proto-Indo-European	h₃-ép-kʷ-	—

via Serbo-Croatian о

Step	Language	Word	Meaning
1	Serbo-Croatian	о	on, against; about, concerning
2	Proto-Slavic	o(b)	around, about; concerning; against, on
3	Proto-Balto-Slavic	ab	—
4	Proto-Indo-European	h₃ebʰi	—

Every word from Proto-Indo-European h₃-ép-kʷ- →Every word from Proto-Indo-European pekʷ- →Every word from Proto-Indo-European pékʷeti →