Editorial direction in a text, from the Latin for 'let it stand' (4)
I believe the answer is:
stet
(Other definitions for stet that I've seen before include "Let it stand (on proofs)" , "'In printing, cancel a correction and leave it as it was (4)'" , "Ignore altered material" , "Printing instruction: "Let it stand"" , "Editing instruction that matter marked for deletion is to be retained" .)