denationalise

/D IH0 N AE1 SH AH0 N AH0 L AY0 Z/
verb
  1. 1

    To transfer the control and ownership of an industry from government to private hands; to privatize.

  2. 2

    To strip of nationhood; to cease to recognise, or allow to exist, as a nation.

Source: https://en.wiktionary.org/wiki/denationalise, https://en.wiktionary.org/wiki/denationalize