The Collaborative International Dictionary of English v.0.48:

Decency \De"cen*cy\, n.; pl. Decencies. [L. decentia, fr.
   decens: cf. F. d['e]cence. See Decent.]
   1. The quality or state of being decent, suitable, or
      becoming, in words or behavior; propriety of form in
      social intercourse, in actions, or in discourse; proper
      formality; becoming ceremony; seemliness; hence, freedom
      from obscenity or indecorum; modesty.
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            Observances of time, place, and of decency in
            general.                              --Burke.
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            Immodest words admit of no defense,
            For want of decency is want of sense. --Roscommon.
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   2. That which is proper or becoming.
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            The external decencies of worship.    --Atterbury.
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            Those thousand decencies, that daily flow
            From all her words and actions.       --Milton.
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