Where does “décennie” come from?

décennie (French) comes from Latin decennium, from Latin decennis, from Latin annus, from Proto-Italic atnos, from Proto-Indo-European h₂et-no-, from Proto-Indo-European h₂et- — grass.

décennie (French): decade, ten-year period

Definitions

  1. decade, ten-year period

Ancestry of “décennie”, step by step

StepLanguageWordMeaning
1Latindecenniumdecennium; decade
2Latindecennisdecennial, of ten years
3Latinannusyear; time; season
4Proto-Italicatnosyear
5Proto-Indo-Europeanh₂et-no-—
6Proto-Indo-Europeanh₂et-grass
Every word from Proto-Indo-European h₂et- →Every word from Proto-Indo-European h₂et-no- →Every word from Proto-Italic atnos →