Etymology

behaviorist

B3E1H4A1V4I1O1R1I1S1T1

Today it means: One who studies behavior of humans or animals. Full definition →

English behavior ← Middle English behavoure ← Old French avoir
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The story

  1. Proto-Indo-European*h₁ep-
  2. Proto-Indo-European*h₁éps
  3. Proto-Indo-European*h₁épi
  4. Proto-Indo-European*h₁pi
  5. Proto-Germanic*bi
  6. Proto-Germanic*bi-
  7. Proto-West Germanic*bi-
  8. Proto-Indo-European*kap-
  9. Proto-Germanic*habjaną
  10. Proto-West Germanic*habbjan
  11. Proto-West Germanic*bihabbjan
  12. Old Englishbehabban
  13. Middle Englishbehaven
  14. Proto-Indo-European*gʰeh₁bʰ-
  15. Proto-Indo-European*gʰh₁bʰéh₁yeti
  16. Proto-Italic*haβēō
  17. Latinhabeō
  18. Old Frenchavoir
  19. Middle Englishhavour
  20. Middle Englishbehavoure
  21. Englishbehavior
  22. English todaybehaviorist

From behavior + -ist.

Etymology from Wiktionary, CC BY-SA 4.0.