Simple past tense and past participle of blot.(verb)
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Use "blotted" in a sentence
"And if anybody that belonged to the band told the secrets, he must have his throat cut, and then have his carcass burnt up and the ashes scattered all around, so that not even the devil could send him back as a bagger, and his name blotted off of the list with blood and never mentioned again by the gang, but have a curse put on it and be forgot forever."
"Homer reports that on the day of the slaughter the sun is blotted from the sky, possibly a reference to an eclipse."
"It's hard to decide which is wreckier-- a wal-mart cake with a horrible correction/misspelling I mean, once you see that round confetti, your expectations drop or a decently decorated cake with a name blotted out in a DOUBLE LAYER of frosting applied with the cake icing tip!"