# novennium

> English word · Noun

## Definitions
1. A nine-year period.

## Etymology
From Late Latin novennium, from novennis (“9-year”) + -ium (suffix forming abstract nouns).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/novennium