Etymology

microphotometer

M3I1C3R1O1P3H4O1T1O1M3E1T1E1R1

Today it means: Any of various photometers used either to measure the variation of densities over small areas, or to measure accurately small changes in illumination. Full definition →

English photometer ← Ancient Greek φωτο- (phōto-) ← Proto-Hellenic *pʰáwos
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The story

  1. Englishmicro-
  2. Proto-Indo-European*bʰeh₂-
  3. Proto-Indo-European*bʰéh₂os
  4. Proto-Hellenic*pʰáwos
  5. Ancient Greekφᾰ́ος (phắos)
  6. Ancient Greekφῶς (phôs)
  7. Ancient Greekφωτο- (phōto-)
  8. Englishphoto-
  9. Englishphotometer
  10. English todaymicrophotometer

From micro- + photometer.

Etymology from Wiktionary, CC BY-SA 4.0.