Let it stand; -- a word used by proof readers to signify that something once erased, or marked for omission, is to remain.
source: Webster 1913
verb
printing: cancel, as of a correction or deletion
source: WordNet 3.0
printing: direct that a matter marked for omission or correction is to be retained (used in the imperative)
source: WordNet 3.0
To cause or direct to remain after having been marked for omission; to mark with the word stet, or with a series of dots below or beside the matter; as, the proof reader stetted a deled footnote.