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- Latin · derived fromquindecennialis
- English todayquindecennial
From Latin quindecennialis, from quindecennium (“15-year period”) + -alis (“-al: forming adjs”). Equivalent to quindec- + -ennial.
Etymology from Wiktionary, CC BY-SA 4.0.
quindecennial
Today it means: Lasting fifteen years. Full definition →
Latin quindecennialis