The story
- Latin · learned borrowing fromPāx Rōmāna
- English todayPax Romana
Learned borrowing from Latin Pāx Rōmāna, from pāx (“peace”) + Rōmāna (“Roman”), apparently coined by Seneca the Younger in 55 AD and popularized in English by Edward Gibbon in his publication Decline and Fall of the Roman Empire (1776).
Etymology from Wiktionary, CC BY-SA 4.0.