The Collaborative International Dictionary of English v.0.48:

Vagary \Va*ga"ry\ (v[.a]*g[=a]"r[y^] or v[a^]g"[.a]*r[-e]), n.;
   pl. Vagaries (v[.a]*g[=a]"r[i^]z or v[a^]g"[.a]*r[-e]z).
   [L. vagari to stroll about. See Vague.]
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   1. A wandering or strolling. [Obs.]
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   2. Hence, a wandering of the thoughts; a wild or fanciful
      freak; a whim; a whimsical purpose. "The vagaries of a
      child." --Spectator.
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            They changed their minds,
            Flew off, and into strange vagaries fell. --Milton.
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