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
Ancestry of “décennie”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | Latin | decennium | decennium; decade |
| 2 | Latin | decennis | decennial, of ten years |
| 3 | Latin | annus | year; time; season |
| 4 | Proto-Italic | atnos | year |
| 5 | Proto-Indo-European | h₂et-no- | — |
| 6 | Proto-Indo-European | h₂et- | grass |