Where does “Grenoble” come from?

Grenoble comes from Old French Graignovol, from Latin Gratianopolis, a city name combining the personal name Gratian with Ancient Greek πόλις meaning city, ultimately from Proto-Indo-European tpelH-.

Ancestry of “Grenoble”, step by step

StepLanguageWordMeaning
1FrenchGrenoble
2Old FrenchGraignovol
3LatinGratianopolis
4LatinGrātiānusA Roman Emperor, Gratian
5LatinGrātiusa Roman nomen gentile, gens or "family name" famously held by
6Latingrātuspleasing, acceptable, agreeable, welcome
7Proto-Italicgrātos
8Proto-Indo-Europeangʷr̥Htóspraised
9Proto-Indo-EuropeangʷerH-to express approval; praise; to elevate
Every word from Proto-Indo-European gʷerH-Every word from Proto-Indo-European gʷr̥HtósEvery word from Proto-Italic grātos