Where does “Σεπτέμβρης” come from?

Σεπτέμβρης (Greek) comes from Koine Greek Σεπτέμβριος, from Latin september, from Latin Septem, from Proto-Italic septem, from Proto-Indo-European septḿ̥ — seven.

Ancestry of “Σεπτέμβρης”, step by step

StepLanguageWordMeaning
1Koine GreekΣεπτέμβριος
2Latinseptemberof September
3LatinSeptemseven; 7
4Proto-Italicseptemseven
5Proto-Indo-Europeanseptḿ̥seven
Every word from Proto-Indo-European septḿ̥Every word from Proto-Italic septemEvery word from Latin Septem