Tricennial
adj ·Rare ·Advanced level
Definitions
- 1 Of, related to, lasting, or occurring once every thirty years. not-comparable
- 2 Of or related to a tricennalia, the celebrations marking the 30th year of a Roman emperor's rule. historical, not-comparable
"Some manuscripts of Eusebius' Life of Constantine contain not only the four books of the Life and Constantine's Speech to the Assembly of the Saints but also two speeches which are conventionally known by a single title as Laus Constantini, Laudes Constantini, De laudibus Constantini, or the "Tricennial Oration," and which all editors of Eusebius so far have published as a single work."
Example
More examples"Some manuscripts of Eusebius' Life of Constantine contain not only the four books of the Life and Constantine's Speech to the Assembly of the Saints but also two speeches which are conventionally known by a single title as Laus Constantini, Laudes Constantini, De laudibus Constantini, or the "Tricennial Oration," and which all editors of Eusebius so far have published as a single work."
Etymology
From Latin trīcennium (“30-year period”) + -al, from trīcennis (“30-year”) + -ium, from trīciēs (“30 times”) + annus (“year”) + -is. Compare Latin tricennalis. Equivalent to tri- + decennial. Doublet of tricennal.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.