Etymology

geodynamo

geo·dy·namo
G2E1O1D2Y4N1A1M3O1

Today it means: the mechanism responsible for the generation of the Earth's magnetic field caused by convection and conduction currents in the fluid core Full definition →

English dynamo ← Ancient Greek γεω- (geō-) ← Proto-Hellenic *gaya
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The story

  1. Proto-Hellenic*gaya
  2. Ancient Greekγαῖᾰ (gaîă)clip.
  3. Ancient Greekγῆ (gê)
  4. Ancient Greekγεω- (geō-)
  5. Englishgeo-
  6. Englishdynamo
  7. English todaygeodynamo

From geo- + dynamo.

Etymology from Wiktionary, CC BY-SA 4.0.