Source : Webster's Revised Unabridged Dictionary (1913)

Wax \Wax\, v. i. [imp. {Waxed}; p. p. {Waxed}, and Obs. or
   Poetic {Waxen}; p. pr. & vb. n. {Waxing}.] [AS. weaxan; akin
   to OFries. waxa, D. wassen, OS. & OHG. wahsan, G. wachsen,
   Icel. vaxa, Sw. v["a]xa, Dan. voxe, Goth. wahsjan, Gr. ? to
   increase, Skr. waksh, uksh, to grow. ???. Cf. {Waist}.]
   1. To increase in size; to grow bigger; to become larger or
      fuller; -- opposed to wane.

            The waxing and the waning of the moon. --Hakewill.

            Truth's treasures . . . never shall wax ne wane.
                                                  --P. Plowman.

   2. To pass from one state to another; to become; to grow; as,
      to wax strong; to wax warmer or colder; to wax feeble; to
      wax old; to wax worse and worse.

            Your clothes are not waxen old upon you. --Deut.
                                                  xxix. 5.

            Where young Adonis oft reposes, Waxing well of his
            deep wound.                           --Milton.

   {Waxing kernels} (Med.), small tumors formed by the
      enlargement of the lymphatic glands, especially in the
      groins of children; -- popularly so called, because
      supposed to be caused by growth of the body. --Dunglison.

Wax \Wax\, v. t. [imp. & p. p. {Waxed}; p. pr. & vb. n.
   {Waxing}.]
   To smear or rub with wax; to treat with wax; as, to wax a
   thread or a table.

   {Waxed cloth}, cloth covered with a coating of wax, used as a
      cover, of tables and for other purposes; -- called also
      {wax cloth}.

   {Waxed end}, a thread pointed with a bristle and covered with
      shoemaker's wax, used in sewing leather, as for boots,
      shoes, and the like; -- called also {wax end}. --Brockett.

Source : WordNet®

waxing
     adj : (of the moon) pertaining to the period during which the
           visible surface of the moon increases; "the waxing moon
           passes from new to full" [ant: {waning}]
     n 1: the application of wax to a surface
     2: a gradual increase in magnitude or extent; "the waxing of
        the moon" [ant: {waning}]