Where does “hebdomada” come from?

hebdomada (Late Latin) comes from Ancient Greek ἑβδομάς, from Ancient Greek ἑπτά, from Proto-Hellenic heptə́, from Proto-Indo-European septḿ̥ — seven.

hebdomada (Late Latin): number seven; group of seven; seven days; the...

Definitions

number seven; group of seven; seven days; the...

Ancestry of “hebdomada”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	ἑβδομάς	A group of seven, "especially" a week of seven...
2	Ancient Greek	ἑπτά	seven
3	Proto-Hellenic	heptə́	seven
4	Proto-Indo-European	septḿ̥	seven

Words derived from “hebdomada”

hebdomad

Every word from Proto-Indo-European septḿ̥ →Every word from Proto-Hellenic heptə́ →Every word from Ancient Greek ἑπτά →