Etymology

photoclinometer

P3H4O1T1O1C3L1I1N1O1M3E1T1E1R1

Today it means: Any of several directional surveying instruments which record photographically the direction and magnitude of well deviations from the vertical. Full definition →

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

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

From photo- + clinometer.

Etymology from Wiktionary, CC BY-SA 4.0.