Etymology Explorer › English

Where does “pentennial” come from?

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

pentennial (English): that occurs every five years

Definitions

  1. that occurs every five years

Ancestry of “pentennial”, step by step

StepLanguageWordMeaning
1Latinannusyear; time; season
2Proto-Italicatnosyear
3Proto-Indo-Europeanh₂et-no-—
4Proto-Indo-Europeanh₂et-grass
Every word from Proto-Indo-European h₂et- →