The Collaborative International Dictionary of English v.0.48:

Convenience \Con*ven"ience\ (?; 106), Conveniency
\Con*ven"ien*cy\, n. [L. convenientia agreement, fitness. See
   Convenient.]
   1. The state or quality of being convenient; fitness or
      suitableness, as of place, time, etc.; propriety.
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            Let's further think of this;
            Weigh what convenience both of time and means
            May fit us to our shape.              --Shak.
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            With all brief and plain conveniency,
            Let me have judgment.                 --Shak.
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   2. Freedom from discomfort, difficulty, or trouble;
      commodiousness; ease; accommodation.
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            Thus necessity invented stools,
            Convenience next suggested elbow chairs. --Cowper.
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            We are rather intent upon the end of God's glory
            than our own conveniency.             --Jer. Taylor.
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   3. That which is convenient; that which promotes comfort or
      advantage; that which is suited to one's wants; an
      accommodation.
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            A pair of spectacles and several other little
            conveniences.                         --Swift.
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   4. A convenient or fit time; opportunity; as, to do something
      at one's convenience.
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