Etymology

sicko

S1I1C3K5O1

Today it means: A person with unpleasant tastes, views or habits. Full definition →

English oh ← Middle English o ← Old French oh
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The story

  1. Proto-Germanic*seukaną
  2. Proto-Germanic*seukaz
  3. Proto-West Germanic*seuk
  4. Old Englishsēoc
  5. Old Englishsēc
  6. Middle Englishsik
  7. Englishsick
  8. Latinō
  9. Old Frenchoh
  10. Middle Englisho
  11. EnglishO
  12. Middle Englisho
  13. Englishoh
  14. English todaysicko

From sick + -o (“person with characteristic”).

Etymology from Wiktionary, CC BY-SA 4.0.