undraw means to draw aside or open; to pull back a layer of fabric, e.g. a curtain. Lexicurio rates it Sui generis — a strength score of 90 out of 100.
Etymology
From un- + draw.
verb
- To draw aside or open; to pull back a layer of fabric, e.g. a curtain.“She undrew the curtain to reveal the shining rays of the sun.”
- To clear or erase part of a drawing.“It is easy to highlight graphics on a monochrome system. The simplest way is to set the GC to the GXxor logical function and draw your graphics once to draw them and again to undraw them.”