Etymology

decasecond

D2E1C3A1S1E1C3O1N1D2

Today it means: An SI unit of time equal to 10¹ seconds. Symbol: das Full definition →

English second ← French déca- ← Late Latin decas
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The story

  1. Proto-Indo-European*déḱm̥
  2. Proto-Hellenic*dékə
  3. Ancient Greekδέκᾰ (dékă)
  4. Ancient Greekδεκάς (dekás)
  5. Late Latindecas
  6. Frenchdéca-
  7. Englishdeca-
  8. Englishsecond
  9. English todaydecasecond

From deca- + second.

Etymology from Wiktionary, CC BY-SA 4.0.