Where does “Septemba” come from?

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

Ancestry of “Septemba”, step by step

Step	Language	Word	Meaning
1	English	September	—
2	Latin	september	of September
3	Latin	Septem	—
4	Proto-Italic	septem	seven
5	Proto-Indo-European	septḿ̥	seven

Every word from Proto-Indo-European septḿ̥ →

Septemba — Etymology, Origin & Word History | Etymology Explorer