Etymology

photodifference

P3H4O1T1O1D2I1F4F4E1R1E1N1C3E1

Today it means: Used attributively to describe a map of the electron density differences between parts of a sample that had been irradiated Full definition →

English difference ← Middle English difference ← Old French difference
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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. Proto-Indo-European*dwóh₁
  9. Proto-Indo-European*trísinflu.
  10. Proto-Indo-European*d(w)is-
  11. Proto-Italic*dis-
  12. Latindis-
  13. Proto-Indo-European*bʰer-
  14. Proto-Indo-European*bʰéreti
  15. Proto-Italic*ferō
  16. Latinferō
  17. Latindifferō
  18. Latindifferēns
  19. Latindifferentia
  20. Old Frenchdifference
  21. Middle Englishdifference
  22. Englishdifference
  23. English todayphotodifference

From photo- + difference.

Etymology from Wiktionary, CC BY-SA 4.0.