The story
- Latin · derived fromfōrmātiō
- Old French · derived fromformacion
- Middle English · inherited fromformacioun
- English todayformation
From Middle English formacioun, formation, borrowed from Old French formacion, from Latin fōrmātiō, from fōrmō (“form”, verb); see form as verb. Morphologically form + -ation.
Etymology from Wiktionary, CC BY-SA 4.0.