Etymology

aperiodic

A1P3E1R1I1O1D2I1C3

Today it means: That does not recur periodically. Full definition →

English periodic ← Latin per- ← Proto-Italic *peri-
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The story

  1. Proto-Indo-European*né
  2. Proto-Indo-European*n̥-
  3. Proto-Hellenic*ə-
  4. Ancient Greekἀ- (a-)
  5. Englisha-
  6. Proto-Indo-European*per-der.?
  7. Proto-Indo-European*pér
  8. Proto-Italic*per
  9. Latinper
  10. Proto-Indo-European*per-
  11. Proto-Italic*peri-
  12. Latinper-
  13. Englishper-
  14. Englishiodic
  15. Englishperiodic
  16. English todayaperiodic

From a- + periodic.

Etymology from Wiktionary, CC BY-SA 4.0.