cast off

verb
  1. 1

    To discard or reject something.

  2. 2

    To let go (a cable or rope securing a vessel to a buoy, wharf, etc.) so that the vessel may make way.

  3. 3

    To finish the last row of knitted stitches and remove them securely from the needle.

  4. 4

    To estimate the amount of space required by the type used for the given copy.

Source: https://en.wiktionary.org/wiki/cast%20off