Wane v. i. [imp. & p. p. Waned p. pr. & vb. n. Waning.]
 1. To be diminished; to decrease; -- contrasted with wax, and especially applied to the illuminated part of the moon.
 Like the moon, aye wax ye and wane.
 Waning moons their settled periods keep.   --Addison.
 2. To decline; to fail; to sink.
    You saw but sorrow in its waning form.   --Dryden.
    Land and trade ever will wax and wane together.   --Sir J. Child.


 Wan·ing n. The act or process of waning, or decreasing.
    This earthly moon, the Church, hath fulls and wanings, and sometimes her eclipses.   --Bp. Hall.

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 waning
      adj : (of the moon) pertaining to the period during which the
            visible surface of the moon decreases; "after full moon
            comes the waning moon" [ant: waxing]
      n : a gradual decrease in magnitude or extent; "the waning of
          his enthusiasm was obvious"; "the waxing and waning of
          the moon" [ant: waxing]