Where does “vicennial” come from?

vicennial (English) comes from Latin vīcennium, from Latin vīcennis, from Latin vīciēs, from Latin annus, from Proto-Italic atnos, from Proto-Indo-European h₂et-no-, from Proto-Indo-European h₂et- — grass.

vicennial (English): Occurring once every twenty years; Lasting for...

Definitions

  1. Occurring once every twenty years; Lasting for...

Ancestry of “vicennial”, step by step

StepLanguageWordMeaning
1Latinvīcenniumvicennium, a twenty-year period
2Latinvīcenniscelebrated or occuring every twenty years, vicennial
3Latinvīciēstwenty times
4Latinannusyear; time; season
5Proto-Italicatnosyear
6Proto-Indo-Europeanh₂et-no-—
7Proto-Indo-Europeanh₂et-grass
Every word from Proto-Indo-European h₂et- →
vicennial — Etymology, Origin & Word History | Etymology Explorer