Where does “Piatra-Olt” come from?

Piatra-Olt (Romanian) comes from Romanian Olt, from Latin aluta, from Proto-Celtic altos, from Proto-Indo-European h₂eltós, from Proto-Indo-European h₂él- — to grow, nourish.

Ancestry of “Piatra-Olt”, step by step

Piatra-Olt traces back through two separate lines of ancestry.

via Romanian Olt

StepLanguageWordMeaning
1RomanianOltA river in Romania, the longest flowing...
2LatinalutaA soft leather, probably made using alum; A purse...
3Proto-Celticaltosheight, cliff
4Proto-Indo-Europeanh₂eltós
5Proto-Indo-Europeanh₂él-to grow, nourish

via Romanian piatră

StepLanguageWordMeaning
1Romanianpiatrăstone
2Latinpetrastone, rock
3Ancient Greekπέτραrock formation: cliff, ledge, cave, ridge; stone
Every word from Proto-Indo-European h₂él-Every word from Proto-Indo-European h₂eltósEvery word from Proto-Celtic altos