abjure (verb)

1. In the episode, the protagonist had to abjure his belief in ghosts to solve the mystery.

2. The movie depicted a character who had to abjure his loyalty to his family in order to pursue his dreams.

3. In the novel, the main character had to abjure his religious upbringing to explore different spiritual paths.

4. The superhero had to abjure his former allegiance to the villain and join forces with the other heroes to save the day.