/ ɪkˈspʌndʒ; NAmE / verb
[ vn ] expunge sth (from sth) ( formal ) to remove or get rid of sth, such as a name, piece of information or a memory, from a book or list, or from your mind
SYN erase :
Details of his criminal activities were expunged from the file.
What happened just before the accident was expunged from his memory.
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WORD ORIGIN
early 17th cent.: from Latin expungere to underline something with points or dots, to show that it should be deleted, from ex- out + pungere to prick.