On official maps, the western half of the city was blotted out—figuratively erased from the world of the living.
Powell is someone who truly "blotted his copybook," as the Brits used to say.
The battle-field stretched grimly round him, and as the sunset was blotted out, a gray mist crept slowly from the west.
The whistler and Razee Reef had been blotted out by the fog.
Finally the boat was beyond their range of vision, blotted out by darkness.
Or had he blotted it from his mind, as she had endeavoured—ineffectually—to do?
Remember how amiable a thing the least degree of grace is, even when it is clouded and blotted with infirmities.
See how this page is blotted: What—could those tears be mine?
Mary obeyed, and taking out a much soiled, blotted letter, Mrs. Campbell asked her to read it aloud.
Then all was blotted out; clouds rolled about him; night fell.
late 14c., originally "blemish," perhaps from Old Norse blettr "blot, stain," or from Old French blot, variant of bloc "block," or blestre "blister, lump, clump of earth."
early 15c., "to make blots;" mid-15c. "to blot out, obliterate" (words), from blot (n.). Related: Blotted; blotting.
The Northern, Southern, or Western blot analyses.