Etymology of the English word quindecennial
the English word
quindecennialderived from the Latin word
quindecim (fifteen)
derived from the Classical Latin word
quinque (five)
derived from the Proto-Indo-European root
*penkʷederived from the Latin word
decem (ten)
derived from the Proto-Indo-European root
*dekm₀Date
The earliest known usage of quindecennial in English dates from the 20th century.
Usage
Word found in Modern English
