Where does “מײַנץ” come from?

מײַנץ (Yiddish) comes from German Mainz, from Latin Mogontiacum, from Celtic unknown.

Ancestry of “מײַנץ”, step by step

StepLanguageWordMeaning
1GermanMainz—
2LatinMogontiacum—
3Celticunknown—
Every word from Celtic unknown →Every word from Latin Mogontiacum →Every word from German Mainz →