to delete or erase (words, passages, etc)
Some superfluities I have expunged, and some faults I have corrected — Dr Johnson
to blot out or obliterate (something)
Nothing can expunge his shame
expunction /ikʹspungksh(ə)n/ noun
expunger noun
[Latin expungere to mark for deletion by dots, from ex-1 + pungere to prick]