regrade

re- +‎ grade

regrade (third-person singular simple present regrades, present participle regrading, simple past and past participle regraded)

1. (transitive) To grade again, give a new grade or grading to.
   • 1951 September, “Notes and News: New Station for Glasgow Zoo”, in Railway Magazine, page 639:

     Before the new station could be built, a private overbridge had to be raised, and the railway regraded.

   • 2020 April 8, “Network News: NR reopens East Grinstead line...”, in RAIL, page 16:

     Two other landslips took place in a cutting where the sides were built too steeply to withstand wet weather. Engineers regraded the slope to make them shallower.

2. (transitive) To regroup or reassign.
3. (US, transitive) To change the classification of (potentially secret documentation).
4. (obsolete) To retire or recede.

regrade (plural regrades)

1. The act or process of grading again.

   There are no regrades in this class: your mark is final.

• Draeger, regarde