Where does “septimāna” come from?

septimāna (Latin) comes from Latin septimānus, from Latin septimus, from Latin Septem, from Proto-Italic septem, from Proto-Indo-European septḿ̥ — seven.

Ancestry of “septimāna”, step by step

Step	Language	Word	Meaning
1	Latin	septimānus	—
2	Latin	septimus	seventh
3	Latin	Septem	—
4	Proto-Italic	septem	seven
5	Proto-Indo-European	septḿ̥	seven

Every word from Proto-Indo-European septḿ̥ →

septimāna — Etymology, Origin & Word History | Etymology Explorer