Where does “dweh₂-m” come from?

dweh₂-m (Proto-Indo-European) comes from Proto-Indo-European dweh₂- — far; long.

Ancestry of “dweh₂-m”, step by step

Step	Language	Word	Meaning
1	Proto-Indo-European	dweh₂-	far; long

dweh₂-m — Etymology, Origin & Word History | Etymology Explorer