Source : Webster's Revised Unabridged Dictionary (1913)

Smock \Smock\ (sm[o^]k), n. [AS. smocc; akin to OHG. smocho,
   Icel. smokkr, and from the root of AS. sm[=u]gan to creep,
   akin to G. schmiegen to cling to, press close, MHG. smiegen,
   Icel. smj[=u]ga to creep through, to put on a garment which
   has a hole to put the head through; cf. Lith. smukti to
   glide. Cf. {Smug}, {Smuggle}.]
   1. A woman's under-garment; a shift; a chemise.

            In her smock, with head and foot all bare.
                                                  --Chaucer.

   2. A blouse; a smoock frock. --Carlyle.

Smock \Smock\, a.
   Of or pertaining to a smock; resembling a smock; hence, of or
   pertaining to a woman.

   {Smock mill}, a windmill of which only the cap turns round to
      meet the wind, in distinction from a post mill, whose
      whole building turns on a post.

   {Smock race}, a race run by women for the prize of a smock.
      [Prov. Eng.]

Smock \Smock\, v. t.
   To provide with, or clothe in, a smock or a smock frock.
   --Tennyson.

Source : WordNet®

smock
     n : a loose coverall (coat or frock) reaching down to the ankles
         [syn: {duster}, {gaberdine}, {gabardine}, {dust coat}]
     v : embellish by sewing in lines crossing each other diagonally;
         "The folk dancers wore smocked shirts"