The toponym would have originated in Indo-European times (Par-eto ~ Par- < PIE *br- / *bar-, 'stone', 'hill', 'mountain', 'slope', + -eto [< Latin -etum, 'village'] = *breto / *bar-eto → *par-eto = Pareto, 'village located on a hill').
The name "Pareto" likely originated from Indo-European roots, with the word possibly stemming from "Par-eto," which means "village situated on a hill."