Etymology

periodically

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Today it means: In a manner that is regular or periodic. Full definition →

Proto-Germanic *līką ← Proto-Indo-European *leyg- ← English periodic
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The story

  1. Proto-Indo-European*per-der.?
  2. Proto-Indo-European*pér
  3. Proto-Italic*per
  4. Latinper
  5. Proto-Indo-European*per-
  6. Proto-Italic*peri-
  7. Latinper-
  8. Englishper-
  9. Englishiodic
  10. Englishperiodic
  11. Proto-Indo-European*h₂el-
  12. Proto-Indo-European*h₂élisder.?
  13. Proto-Indo-European*leyg-
  14. Proto-Germanic*līką
  15. English todayperiodically

From periodic + -ally.

Etymology from Wiktionary, CC BY-SA 4.0.