The story
- Latin · borrowed fromprōiectiō
- Middle French · borrowed fromprojection
- English todayprojection
From either the Middle French projection or its etymon, the Classical Latin prōiectiō (stem: prōiectiōn-), from prōiciō, equivalent to project + -ion. Compare the Modern French projection, the German Projektion, and the Italian proiezione.
Etymology from Wiktionary, CC BY-SA 4.0.