Where does “Pratápolis” come from?

Pratápolis (Portuguese) comes from Portuguese prata, from Old Portuguese prata, from Vulgar Latin platta, from Latin plattus, from Ancient Greek πλατύς, from Proto-Indo-European pléth₂us, from Proto-Indo-European pleth₂- — flat.

Ancestry of “Pratápolis”, step by step

Step	Language	Word	Meaning
1	Portuguese	prata	silver; one hundred cents of current currency...
2	Old Portuguese	prata	silver
3	Vulgar Latin	platta	metal plate
4	Latin	plattus	flattened
5	Ancient Greek	πλατύς	wide, broad; flat, level; broad-shouldered
6	Proto-Indo-European	pléth₂us	flat, broad
7	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 →