tricennium

English

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

tricennium (plural tricennia or tricenniums)

(rare) A period of thirty years.
- 1979, Thomas J. Dunlap, transl. Herwig Wolfram as History of the Goths, p. 298:
  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).
- 2021, Gavin Lucas, Making Time, page 48:
  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.

(Classical Latin) IPA^(key): /triːˈken.ni.um/, [t̪riːˈkɛnːiʊ̃ˑ]
(modern Italianate Ecclesiastical) IPA^(key): /triˈt͡ʃen.ni.um/, [t̪riˈt͡ʃɛnːium]

trīcennium n (genitive trīcenniī or trīcennī); second declension

¹Found in older Latin (until the Augustan Age).

trīcennium

“tricennium”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
tricennium in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.