The story
- Old Frenchaucion
- Middle Englishaccioun
- Englishaction
- Proto-Indo-European*dʰeh₁-
- Proto-Indo-European*dʰéh₁s
- Proto-Indo-European*dʰeh₁stos
- Proto-Italic*θēstos
- Proto-Italic*fēstos
- Latinfēstus
- Latinfestum
- Middle High Germanfëst
- GermanFest
- Englishfest
- English todayactionfest
Etymology from Wiktionary, CC BY-SA 4.0.