stet

from The American Heritage® Dictionary of the English Language, 5th Edition.

• intransitive verb To direct that a letter, word, or other matter marked for omission or correction is to be retained. Used in the imperative.
• intransitive verb To nullify (a correction or deletion) in printed matter.

from The Century Dictionary.

• To mark with the word “stet”; direct or cause to remain, after deletion, as printed; forbear to delete.
• Let it (that is, the original) stand: a proof-reader's order to cancel an alteration previously made by him.

from the GNU version of the Collaborative International Dictionary of English.

• (Print.) Let it stand; -- a word used by proof readers to signify that something once erased, or marked for omission, is to remain.
• transitive verb (Print.) 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.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A symbol used by proofreaders and typesetters to indicate that a word or phrase that was crossed out should still remain. This is usually marked by writing and circling the word stet above or beside the unwanted edit and underscoring the selection with dashes or dots. Alternatively, a circled checkmark may be used in the margin.
• verb The act of marking previously edited material “stet” to indicate that something previously marked for change should remain as is.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• verb printing: cancel, as of a correction or deletion
• verb printing: direct that a matter marked for omission or correction is to be retained (used in the imperative)