Where does “zihir” come from?

zihir (Gagauz) comes from Persian زهر, from Middle Persian zʾhl, from Proto-Iranian ǰaθráH, from Proto-Indo-European gʷʰen-, from Proto-Indo-European bʰon-.

zihir (Gagauz): poison

Definitions

poison

Ancestry of “zihir”, step by step

Step	Language	Word	Meaning
1	Persian	زهر	poison; venom
2	Middle Persian	zʾhl	poison
3	Proto-Iranian	ǰaθráH	poison
4	Proto-Indo-European	gʷʰen-	to strike, slay, kill
5	Proto-Indo-European	bʰon-	—

Every word from Proto-Indo-European bʰon- →Every word from Proto-Indo-European gʷʰen- →Every word from Proto-Iranian ǰaθráH →