idiosyncracy ‎(plural idiosyncracies)

  1. Alternative spelling of idiosyncrasy

Usage notesEdit

  • This spelling is commonly considered a misspelling; etymologically the preferred spelling is idiosyncrasy, which is also the only spelling given by most dictionaries, such as the Unabridged[1] and the American Heritage Dictionary.[2] This spelling is mentioned in the Oxford English Dictionary's entry for idiosyncrasy, but is marked as erroneous.[3] Webster's Third New International Dictionary[4] gives both spellings, but under the entry name idiosyncrasy.


  1. ^ idiosyncracy” in Unabridged, v1.0.1, Lexico Publishing Group, 2006.
  2. ^ idiosyncracy” in The American Heritage Dictionary of the English Language, Fourth Edition, Houghton Mifflin Company, 2000.
  3. ^ Oxford English Dictionary, 1884–1928, and First Supplement, 1933
  4. ^ Webster's Third New International Dictionary (unabridged), Chicago, Illinois, Encyclopedia Brittanica, Inc., 1993