The story
- Proto-Indo-European*h₂éd
- Proto-Italic*ad
- Proto-Italic*ad-
- Latinad-
- Old Frencha-
- Frencha-
- Proto-Indo-European*seh₁-redup.
- Proto-Indo-European*sísh₁eti
- Proto-Italic*sizō
- Latinserō
- Latinsatiō
- Old Frenchsaison
- Frenchsaison
- Frenchassaisonner
- Englishseason
- English todayseasonable
Etymology from Wiktionary, CC BY-SA 4.0.