centralising

/S EH1 N T R AH0 L AY0 Z IH0 NG/
verb
  1. 1

    To move things physically towards the centre; to consolidate or concentrate

  2. 2

    To move power to a single, central authority

Source: https://en.wiktionary.org/wiki/centralise, https://en.wiktionary.org/wiki/centralising, https://en.wiktionary.org/wiki/centralize