Etymology

microseism

M3I1C3R1O1S1E1I1S1M3

Today it means: A faint earth tremor caused by natural phenomena, such as wind. Full definition →

English seism ← Ancient Greek μῑκρο- (mīkro-) ← Proto-Indo-European *mey-der.?
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The story

  1. Proto-Indo-European*mey-der.?
  2. Ancient Greekμῑκρός (mīkrós)
  3. Ancient Greekμῑκρο- (mīkro-)
  4. Englishmicro-
  5. Englishseism
  6. English todaymicroseism

From micro- + seism.

Etymology from Wiktionary, CC BY-SA 4.0.