cast off

verb4

1. •
   To discard or reject something.

   • However, with the dainty volume my quondam friend sprang into fame. At the same time he cast off the chrysalis of a commonplace existence. — 1897
2. •
   To let go (a cable or rope securing a vessel to a buoy, wharf, etc.) so that the vessel may make way.
3. •
   To finish the last row of knitted stitches and remove them securely from the needle.
4. •
   (historical) To estimate the amount of space required by the type used for the given copy.

   • To conserve type, copy was "cast off"; that is, type needed for the initial pages was estimated so that the pages need not be composed in the same sequence as the copy. — 2012