Where does “*vr̥dah” come from?

*vr̥dah (Old Persian) comes from Proto-Indo-European wr̥dʰos — sweetbriar.

Ancestry of “*vr̥dah”, step by step

Step	Language	Word	Meaning
1	Proto-Indo-European	wr̥dʰos	sweetbriar

*vr̥dah — Etymology, Origin & Word History | Etymology Explorer