# tredecennial

> English word · Noun

## Definitions
1. A period of thirteen years.

## Etymology
Latin trēdecennium + English -al or Latin trēdecim + English -ennial

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