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From sesqui- (“one-and-a-half”) + centennial (“of 100 years”). By surface analysis, sesqui- + cent- + -ennial.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: Occurring every 150 years. Full definition →
From sesqui- (“one-and-a-half”) + centennial (“of 100 years”). By surface analysis, sesqui- + cent- + -ennial.
Etymology from Wiktionary, CC BY-SA 4.0.