Etymology

periodical

pe·ri·od·i·cal
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Today it means: A publication issued regularly, but less frequently than daily. Full definition →

Proto-Indo-European *h₂élisder.? ← English period ← Middle English periode
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The story

  1. Proto-Indo-European*per-
  2. Ancient Greekπερῐ́ (perĭ́)
  3. Proto-Indo-European*sed-
  4. Proto-Indo-European*sodós?
  5. Proto-Hellenic*hodós
  6. Ancient Greekὁδός (hodós)
  7. Ancient Greekπερῐ́οδος (perĭ́odos)
  8. Medieval Latinperiodus
  9. Middle Frenchperiode
  10. Middle Englishperiode
  11. Englishperiod
  12. Proto-Indo-European*h₂el-
  13. Proto-Indo-European*h₂élisder.?
  14. English todayperiodical

From period + -ical.

Etymology from Wiktionary, CC BY-SA 4.0.