Where does “stadiu” come from?

stadiu (Romanian) comes from French stade, from Latin Stadium, from Ancient Greek στάδιον, from Ancient Greek στάδιος, from Proto-Indo-European *steh₂-.

stadiu (Romanian): stage

Definitions

stage

Ancestry of “stadiu”, step by step

Step	Language	Word	Meaning
1	French	stade	stadium; stage
2	Latin	Stadium	stade (distance of 125 paces)
3	Ancient Greek	στάδιον	A 600-foot track for footraces and the...
4	Ancient Greek	στάδιος	standing fast and firm; firm, fixed, immobile;...
5	Proto-Indo-European	*steh₂-	—

Every word from Proto-Indo-European *steh₂- →Every word from Ancient Greek στάδιος →Every word from Ancient Greek στάδιον →