The story
- Latin · derived fromquadriennium
- Late Latin · borrowed fromquadrennium
- English todayquadrennium
From Late Latin quadrennium, from Latin quadriennium, from quadriennis (“4-year”) + -ium (suffix forming abstract nouns).
Words from the same roots
Latinquadriennium all →
quadrennial
Etymology from Wiktionary, CC BY-SA 4.0.