The Collaborative International Dictionary of English v.0.48:

Inadvertence \In`ad*vert"ence\; pl. -ces, Inadvertency
\In`ad*vert"en*cy\; pl. -cies, n. [Cf. F. inadvertance.]
   [1913 Webster]
   1. The quality of being inadvertent; lack of heedfulness or
      attentiveness; inattention; negligence; as, many mistakes
      proceed from inadvertence.
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            Inadvertency, or lack of attendance to the sense and
            intention of our prayers.             --Jer. Taylor.
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   2. An effect of inattention; a result of carelessness; an
      oversight, mistake, or fault from negligence.
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            The productions of a great genius, with many lapses
            an inadvertencies, are infinitely preferable to
            works of an inferior kind of author which are
            scrupulously exact.                   --Addison.

   Syn: Inattention; heedlessness; carelessness; negligence;
        thoughtlessness. See Inattention.
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The Collaborative International Dictionary of English v.0.48:

Superintendency \Su`per*in*tend"en*cy\, n.; pl. -cies.
   The act of superintending; superintendence. --Boyle.
   [1913 Webster]