apostatised

/AE1 P AH0 S T AE0 T IH0 S T/
verb
  1. 1

    To give up or renounce one's position or belief.

Source: https://en.wiktionary.org/wiki/apostatise, https://en.wiktionary.org/wiki/apostatised, https://en.wiktionary.org/wiki/apostatize