Where does “dóru” come from?

dóru (Proto-Indo-European) comes from Proto-Indo-European drew- — hard, firm, strong, solid; hard, fast; tree.

dóru (Proto-Indo-European): tree

Definitions

Step	Language	Word	Meaning
1	Proto-Indo-European	drew-	hard, firm, strong, solid; hard, fast; tree

dóru — Etymology, Origin & Word History | Etymology Explorer