Where does “settember” come from?

settember (Romansch) comes from Latin september, from Latin Septem, from Proto-Italic septem, from Proto-Indo-European septḿ̥ — seven.

Ancestry of “settember”, step by step

StepLanguageWordMeaning
1Latinseptemberof September
2LatinSeptemseven; 7
3Proto-Italicseptemseven
4Proto-Indo-Europeanseptḿ̥seven
Every word from Proto-Indo-European septḿ̥ →Every word from Proto-Italic septem →Every word from Latin Septem →
settember — Etymology, Origin & Word History | Etymology Explorer