Where does “octennium” come from?

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

octennium (Latin): 8-year

Definitions

  1. 8-year

Ancestry of “octennium”, step by step

StepLanguageWordMeaning
1Latinoctenniseight-year-old
2Latinannusyear; time; season
3Proto-Italicatnosyear
4Proto-Indo-Europeanh₂et-no-—
5Proto-Indo-Europeanh₂et-grass

Words derived from “octennium”

Every word from Proto-Indo-European h₂et- →Every word from Proto-Indo-European h₂et-no- →Every word from Proto-Italic atnos →