The story
- Proto-Indo-European*per-
- Proto-Indo-European*preh₂-
- Proto-Indo-European*préh₂i?
- Proto-Italic*prai
- Proto-Italic*prai-
- Latinprae-
- Middle Englishpre-
- Englishpre-
- Proto-Indo-European*h₂eǵ-
- Proto-Indo-European*h₂éǵeti
- Proto-Italic*agō
- Latinagō
- Ancient Greekἐνεργητικός (energētikós)
- Latināctīvu
- Old Frenchactif
- Middle Englishactyf
- Englishactive
- Englishactivate
- Englishactivation
- English todaypreactivation
From pre- + activation.
Etymology from Wiktionary, CC BY-SA 4.0.