The story
- Latinsatisfacerep
- Old Frenchsatisfier
- Middle Englishsatisfyen
- English todaysatisfy
From Middle English satisfyen, satisfien, from Old French satisfiier, satisfier (also Old French satisfaire), from Latin satisfacere, from satis (“enough, sufficient”) + faciō (“to make; to do”).
Etymology from Wiktionary, CC BY-SA 4.0.