Where does “September” come from?

September comes from Latin september, derived from Latin septem, meaning "seven," ultimately from Proto-Indo-European septḿ̥.

September (English): The ninth month of the Gregorian calendar, following August and preceding October, containing the southward equinox

Definitions

  1. The ninth month of the Gregorian calendar, following August and preceding October, containing the southward equinox

Ancestry of “September”, step by step

StepLanguageWordMeaning
1Latinseptemberof September
2LatinSeptemseven; 7
3Proto-Italicseptemseven
4Proto-Indo-Europeanseptḿ̥seven

Words derived from “September”

Every word from Proto-Indo-European septḿ̥ →Every word from Proto-Italic septem →Every word from Latin Septem →