\Etch\, n.
A variant of {Eddish}. [Obs.] --Mortimer.

\Etch\, v. t. [imp. & p. p. {Etched}; p. pr. & vb. n.
{Etching}.] [D. etsen, G. ["a]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.
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.
2. To subject to etching; to draw upon and bite with acid, as
   a plate of metal.
         I was etching a plate at the beginning of 1875.
                                               --Hamerton.
3. To sketch; to delineate. [R.]
         There are many empty terms to be found in some
         learned writes, to which they had recourse to etch
         out their system.                     --Locke.

\Etch\, v. i.
To practice etching; to make etchings.