Dictionary

tricennium en · NOUN

Etymology

From Latin trīcennium, from trīcennis (“30-year”) + -ium, from trīciēs (“30 times”) + annus (“year”) + -is (“forming compound adjectives”). Equivalent to tricennial + -ium.

Meanings

1. (rare) A period of thirty years.
   • As early as the second decade after his entry into Italy Theodoric made all illegal or irregular acquisitions that had taken place prior to this fixed date [28 August 489] subject to the thirty-year statue of limitation (tricennium). 1979, Thomas J. Dunlap, transl. Herwig Wolfram as History of the Goths, p. 298
   • With a site I have been working with in Iceland, I am dealing with 30-year time units or tricennia, and even if it is no Pompeii, there are still features that we know represented much shorter time scales—the construction of a fireplace that could have been accomplished in a day, the placing of a coin under a timber sill beam that only took a few seconds. 2021, Gavin Lucas, Making Time, page 48:

Forms

Deriveds

tricennial

Relateds

quinquennium · centimillennium (100,000) · vicennium · decennium · annum (1 year) · millennium (1000) · octennium · millionennium (1,000,000) · decamillennium (10,000) · quincentennium (500) · triennium · biennium · sexennium · centennium (100) · quadrennium · novennium · septennium