etch

verb

1. To cut into a surface with an acid or other corrosive substance in order to make a pattern. Best known as a technique for creating printing plates, but also used for decoration on metal, and, in modern industry, to make circuit boards.
2. To engrave a surface.
3. (figuratively)To make a lasting impression.

   “The memory of 9/11 is etched into my mind.”

4. To sketch; to delineate.

   “There are many such empty terms to be found in some learned writers, to which they had recourse to etch out their system.”

noun

1. (alt-of, obsolete)Obsolete form of eddish.

   “Black Oats are commonly sown upon an Etch Crop, or on a Lay which they plow up in January, when the Earth is moist, taking care to turn the Turf well, and to lay it even and flat.”