Where does “Hepetema” come from?

Hepetema (Maori) comes from English September, from Latin september, from Latin Septem, from Proto-Italic septem, from Proto-Indo-European septḿ̥ — seven.

Ancestry of “Hepetema”, step by step

Step	Language	Word	Meaning
1	English	September	The ninth month of the Gregorian calendar, following August and preceding October, containing the southward equinox
2	Latin	september	of September
3	Latin	Septem	seven; 7
4	Proto-Italic	septem	seven
5	Proto-Indo-European	septḿ̥	seven

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