The Collaborative International Dictionary of English v.0.48:

Fade \Fade\, v. i. [imp. & p. p. Faded; p. pr. & vb. n.
   Fading.] [OE. faden, vaden, prob. fr. fade, a.; cf. Prov.
   D. vadden to fade, wither, vaddigh languid, torpid. Cf.
   Fade, a., Vade.]
   1. To become fade; to grow weak; to lose strength; to decay;
      to perish gradually; to wither, as a plant.
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            The earth mourneth and fadeth away.   --Is. xxiv. 4.
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   2. To lose freshness, color, or brightness; to become faint
      in hue or tint; hence, to be wanting in color. "Flowers
      that never fade." --Milton.
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   3. To sink away; to disappear gradually; to grow dim; to
      vanish.
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            The stars shall fade away.            --Addison
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            He makes a swanlike end,
            Fading in music.                      --Shak.
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The Collaborative International Dictionary of English v.0.48:

Fading \Fad"ing\, a.
   Losing freshness, color, brightness, or vigor. -- n. Loss of
   color, freshness, or vigor. -- Fad"ing*ly, adv. --
   Fad"ing*ness, n.
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The Collaborative International Dictionary of English v.0.48:

Fading \Fad"ing\, n.
   An Irish dance; also, the burden of a song. "Fading is a fine
   jig." [Obs.] --Beau. & Fl.
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WordNet (r) 3.0 (2006):

fading
    n 1: weakening in force or intensity; "attenuation in the volume
         of the sound" [syn: attenuation, fading]