Where does “hebdomad” come from?

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

hebdomad (English): A group of seven; A period of seven days; a week;...

Definitions

  1. A group of seven; A period of seven days; a week;...

Ancestry of “hebdomad”, step by step

StepLanguageWordMeaning
1Late Latinhebdomadanumber seven; group of seven; seven days; the...
2Ancient GreekἑβδομάςA group of seven, "especially" a week of seven...
3Ancient Greekἑπτάseven
4Proto-Hellenicheptə́seven
5Proto-Indo-Europeanseptḿ̥seven
Every word from Proto-Indo-European septḿ̥ →Every word from Proto-Hellenic heptə́ →Every word from Ancient Greek ἑπτά →