The Collaborative International Dictionary of English v.0.48:

Fleck \Fleck\, v. t. [imp. & p. p. Flecked; p. pr. & vb. n.
   Flecking.] [Cf. Icel. flekka, Sw. fl[aum]cka, D. vlekken,
   vlakken, G. flecken. See Fleck, n.]
   To spot; to streak or stripe; to variegate; to dapple.
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         Both flecked with white, the true Arcadian strain.
                                                  --Dryden.
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         A bird, a cloud, flecking the sunny air. --Trench.
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