Where does “Rochelle salt” come from?

Rochelle salt (English) comes from English La Rochelle, from French La Rochelle, from Old French rochelle, from Old French roche, from Persian رخ, from Middle Persian lhw', from Sanskrit रथ, from Proto-Indo-Iranian Hrátʰas — to roll; wheel; to run, roll.

Rochelle salt (English): The double salt potassium sodium tartrate...

Definitions

  1. The double salt potassium sodium tartrate...

Ancestry of “Rochelle salt”, step by step

StepLanguageWordMeaning
1EnglishLa Rochelle{{der|en|fr|La Rochelle}}
2FrenchLa Rochelle
3Old Frenchrochelle
4Old Frenchrocherock
5Persianرخrook; cheek; face
6Middle Persianlhw'rook, castle
7Sanskritरथchariot, car, especially a two-wheeled...
8Proto-Indo-IranianHrátʰaschariot
9Proto-Indo-EuropeanHrót-h₂-os
10Proto-Indo-EuropeanHret-to roll; wheel; to run, roll
Every word from Proto-Indo-European Hret-
Rochelle salt — Etymology, Origin & Word History | Etymology Explorer