From Longman Dictionary of Contemporary Englishexpungeex‧punge /ɪkˈspʌndʒ/ verb [transitive] formal 1 REMOVEto remove a name from a list, piece of information, or book2 FORGETto make someone forget something unpleasantexpunge something from something I wanted to expunge the memory of that first race from my mind.→ See Verb table
Examples from the Corpus
expunge• They know that his letters home will be read by censors, and that any indication of his whereabouts will be expunged.• I wrote the letter a dozen times, trying to moderate the tone, studiously expunging all traces of passion.• You don't need to - it was expunged automatically long ago.• Three others served probationary terms and their charges have been expunged, Charlton said.• My karma was to help her expunge her personal devils by being smaller than she was when she was angry.• Their criminal records were expunged in return for their testimony.• I don't think there's anything terrible about expunging Sylvie.expunge something from something• Howard tried to expunge the whole episode from his memory.Origin expunge (1600-1700) Latin expungere “to mark something with small holes to show that it is to be removed”, from pungere “to make a small hole” 