Recantation (noun)

1. The act of publicly retracting or renouncing a previously held belief or statement.
2. A formal public retraction of a previously held opinion or position.

Origin:

From latin recantare, meaning "to sing back", originally referring to the singing back of a musical composition.

Examples:

1. The recantation of his testimony was seen as a major blow to the prosecution's case.
2. The scientist's recantation of his previous findings sparked a debate in the academic community.
3. The politician's recantation of his earlier stance was a surprising turn of events.
4. The recantation was seen as an admission of guilt by the defendant.
5. The recantation was met with skepticism by many who had followed the case closely.