Definition of daffy

< daffodil

daft >

daf·fy    (df) KEY 

ADJECTIVE:
Informal daf·fi·er, daf·fi·est

1. Silly; foolish.
2. Crazy.

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ETYMOLOGY:
From obsolete daff, fool, from Middle English daffe; probably akin to dafte, foolish ; see daft

OTHER FORMS:
daffi·ly(Adverb), daffi·ness(Noun)