Etymology

spirometer

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Today it means: An instrument for measuring the air capacity of the lungs. Full definition →

Ancient Greek μέτρον (métron) ← Proto-Indo-European *meh₁- ← Latin spīro
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The story

  1. Proto-Indo-European*(s)peys-der.?
  2. Latinspīro
  3. Proto-Indo-European*med-
  4. Proto-Indo-European*meh₁-
  5. Ancient Greekμέτρον (métron)
  6. English todayspirometer

From Latin spīro (“to breathe”) + English -meter.

Etymology from Wiktionary, CC BY-SA 4.0.