The Collaborative International Dictionary of English v.0.48:

Etch \Etch\, v. i.
   To practice etching; to make etchings.
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The Collaborative International Dictionary of English v.0.48:

Etch \Etch\, n.
   A variant of Eddish. [Obs.] --Mortimer.
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The Collaborative International Dictionary of English v.0.48:

Etch \Etch\, v. t. [imp. & p. p. Etched; p. pr. & vb. n.
   Etching.] [D. etsen, G. [aum]tzen to feed, corrode, etch.
   MHG. etzen, causative of ezzen to eat, G. essen ??. See
   Eat.]
   1. To produce, as figures or designs, on mental, glass, or
      the like, by means of lines or strokes eaten in or
      corroded by means of some strong acid.
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   Note: The plate is first covered with varnish, or some other
         ground capable of resisting the acid, and this is then
         scored or scratched with a needle, or similar
         instrument, so as to form the drawing; the plate is
         then covered with acid, which corrodes the metal in the
         lines thus laid bare.
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   2. To subject to etching; to draw upon and bite with acid, as
      a plate of metal.
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            I was etching a plate at the beginning of 1875.
                                                  --Hamerton.
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   3. To sketch; to delineate. [R.]
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            There are many empty terms to be found in some
            learned writes, to which they had recourse to etch
            out their system.                     --Locke.
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WordNet (r) 3.0 (2006):

etch
    v 1: make an etching of; "He etched her image into the surface"
    2: cause to stand out or be clearly defined or visible; "a face
       etched with pain"; "the leafless branches etched against the
       sky"
    3: carve or cut into a block used for printing or print from
       such a block; "engrave a letter" [syn: engrave, etch]
    4: carve or cut a design or letters into; "engrave the pen with
       the owner's name" [syn: engrave, etch]
    5: selectively dissolve the surface of (a semiconductor or
       printed circuit) with a solvent, laser, or stream of
       electrons