adjective, daf·fi·er, daf·fi·est. Informal.

silly; weak-minded; crazy.

Origin of daffy

1880–85; daff (obsolete; see daff1) + -y1
Related formsdaf·fi·ly, adverbdaf·fi·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for daffy

Contemporary Examples of daffy

Historical Examples of daffy

  • Saved my life by shooting a dog with a bottle of Daffy's elixir!'

    Micah Clarke

    Arthur Conan Doyle

  • My dear mother packed a bottle of Daffy's elixir in the barrel of my pistol.'

    Micah Clarke

    Arthur Conan Doyle

  • Bob laughed heartily at his Cousin's interpretation of Daffy's.

  • The crowd laughed and said, "poor fellow, he's daffy in the head."

    Evening Round Up

    William Crosbie Hunter

  • Furthermore, he was so daffy and curdled in the Filbert that he sold three times as much as he had.

    Ade's Fables

    George Ade

British Dictionary definitions for daffy


adjective daffier or daffiest

informal another word for daft (def. 1), daft (def. 2)

Word Origin for daffy

C19: from obsolete daff fool; see daft
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for daffy

1884, perhaps from daft (adj.), or from obsolete daffe "halfwit" (cf. 15c. daffish), of unknown origin. With -y (2). Related: Daffily; daffiness.

Online Etymology Dictionary, © 2010 Douglas Harper