Etymology

activation

A1C3T1I1V4A1T1I1O1N1

Today it means: Making active and effective; bringing into a state of activity. Full definition →

English activate ← Middle English actyf ← Old French actif
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The story

  1. Proto-Indo-European*h₂eǵ-
  2. Proto-Indo-European*h₂éǵeti
  3. Proto-Italic*agō
  4. Latinagō
  5. Ancient Greekἐνεργητικός (energētikós)
  6. Latināctīvu
  7. Old Frenchactif
  8. Middle Englishactyf
  9. Englishactive
  10. Englishactivate
  11. English todayactivation

From active + -ation, or from activate + -ion.

Etymology from Wiktionary, CC BY-SA 4.0.