Where does “Păltinoasa” come from?

Păltinoasa (Romanian) comes from Romanian paltin, from Vulgar Latin platinus, from Latin platanus, from Greek πλάτανος, from Ancient Greek πλάτανος, from Ancient Greek πλατύς, from Proto-Indo-European pléth₂us, from Proto-Indo-European pleth₂- — flat.

Ancestry of “Păltinoasa”, step by step

Step	Language	Word	Meaning
1	Romanian	paltin	sycamore maple
2	Vulgar Latin	platinus	—
3	Latin	platanus	planetree, sycamore
4	Greek	πλάτανος	plane tree
5	Ancient Greek	πλάτανος	planetree
6	Ancient Greek	πλατύς	wide, broad; flat, level; broad-shouldered
7	Proto-Indo-European	pléth₂us	flat, broad
8	Proto-Indo-European	pleth₂-	flat

Every word from Proto-Indo-European pleth₂- →Every word from Proto-Indo-European pléth₂us →Every word from Ancient Greek πλατύς →