Where does “triénio” come from?

triénio (Portuguese) comes from Latin triennium, from Latin triennis, from Latin annus, from Proto-Italic atnos, from Proto-Indo-European h₂et-no-, from Proto-Indo-European h₂et- — grass.

triénio (Portuguese): triennium; period of three years

Definitions

  1. triennium; period of three years

Ancestry of “triénio”, step by step

StepLanguageWordMeaning
1Latintrienniuma period of three years, triennium
2Latintriennisthree-year-old
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 →