Origin: Germanic Old English prefix
Overdraw has 4 different meanings across 1 category:
The process by which, during the rendering of a three-dimensional scene, a pixel is replaced by one that is closer to the viewpoint, as determined by their Z coordinates.
to enlarge beyond bounds or the truth
"tended to romanticize and exaggerate this `gracious Old South' imagery"
To withdraw more money from an account than there is credit; to make an overdraft
Overdraw comes from combining the prefix over- with the verb draw. It originally meant to pull or take out more than is available.