Etymology

wacko

W4A1C3K5O1

Today it means: Amusingly eccentric or irrational. Full definition →

English oh ← Middle English o ← Old French oh
Ask AI about its historyChatGPTClaudePerplexityGoogle AIGrok

The story

  1. Englishwhack
  2. Englishwack(y)
  3. Latinō
  4. Old Frenchoh
  5. Middle Englisho
  6. EnglishO
  7. Middle Englisho
  8. Englishoh
  9. English todaywacko

From wack(y) + -o.

Etymology from Wiktionary, CC BY-SA 4.0.