Where does “septennium” come from?

septennium (English) comes from Latin septennium, from Latin septuennium, from Latin septuennis, from Latin annus, from Proto-Italic atnos, from Proto-Indo-European h₂et-no-, from Proto-Indo-European h₂et- — grass.

septennium (English): A period of seven years

Definitions

  1. A period of seven years

Ancestry of “septennium”, step by step

septennium traces back through two separate lines of ancestry.

via Latin septennium

StepLanguageWordMeaning
1LatinseptenniumAlternative spelling of septuennium; a period of...
2Latinseptuenniumseptennium, †septenniad
3Latinseptuennisseven-year-old
4Latinannusyear; time; season
5Proto-Italicatnosyear
6Proto-Indo-Europeanh₂et-no-
7Proto-Indo-Europeanh₂et-grass

via Latin septennis

StepLanguageWordMeaning
1LatinseptennisAlternative form of septuennis

Words derived from “septennium

Every word from Proto-Indo-European h₂et-Every word from Proto-Indo-European h₂et-no-Every word from Proto-Italic atnos