The story
- Latin · derived fromfōmentum“lotion”
- Late Latin · derived fromfōmentāre
- Old French · derived fromfomenter
- Middle English · inherited fromfomenten
- English todayfoment
From Middle English fomenten, a borrowing from Old French fomenter, from Late Latin fōmentāre, from Latin fōmentum (“lotion”), from fovēre (“heat, cherish”).
Etymology from Wiktionary, CC BY-SA 4.0.