The story
- Latin*med-der.?
- Latinmoderō
- Latinmoderātiō
- Old Frenchmoderacion
- Middle French[Term?]
- English todaymoderation
Borrowed from Middle French [Term?], from Old French moderacion, from Latin moderātiō. By surface analysis, moderate + ion.
Etymology from Wiktionary, CC BY-SA 4.0.