Very unusual or surprising; odd and strange; also meaning sudden and unpredictable like a freak of nature.
From 'freak' (possibly from Old English 'frician' meaning to dance) plus '-ish' (like or resembling). 'Freak' originally meant a sudden change of mood, then extended to mean something unnaturally strange.
Medieval people used 'freak of nature' to explain things they couldn't understand—deformed animals, unusual weather, rare births—showing how humans need words to make sense of the unexplainable and unusual!
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