
Noah Webster
Quinquennial
QUINQUEN'NIAL, adjective [Latin quinquennalis, quinquennis; quinque, five, and annus, year.] Occurring once in five years, or lasting five years.
QUINQUEN'NIAL, adjective [Latin quinquennalis, quinquennis; quinque, five, and annus, year.] Occurring once in five years, or lasting five years.