The Collaborative International Dictionary of English v.0.48:

Canny \Can"ny\, Cannei \Can"nei\, a. [Cf. Icel. kenn skilled,
   learned, or E. canny. Cf. Kenn.] [North of Eng. & Scot.]
   1. Artful; cunning; shrewd; wary.
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   2. Skillful; knowing; capable. --Sir W. Scott.
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   3. Cautious; prudent; safe.. --Ramsay.
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   4. Having pleasing or useful qualities; gentle. --Burns.
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   5. Reputed to have magical powers. --Sir W. Scott.
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   No canny, not safe, not fortunate; unpropitious. [Scot.]
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