The Collaborative International Dictionary of English v.0.48:

Daff \Daff\ (d[.a]f), v. t. [Cf. Doff.]
   To cast aside; to put off; to doff. [Obs.]
   [1913 Webster]

         Canst thou so daff me? Thou hast killed my child.
                                                  --Shak.
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The Collaborative International Dictionary of English v.0.48:

Daff \Daff\, n. [See Daft.]
   A stupid, blockish fellow; a numskull. [Obs.] --Chaucer.
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The Collaborative International Dictionary of English v.0.48:

Daff \Daff\ (d[.a]f), v. i.
   To act foolishly; to be foolish or sportive; to toy. [Scot.]
   --Jamieson.
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The Collaborative International Dictionary of English v.0.48:

Daff \Daff\, v. t.
   To daunt. [Prov. Eng.] --Grose.
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