Protestation (noun)

An assertion or declaration that something is true or right, especially in the face of opposition or doubt.

Origin:

The word protestation is derived from the latin word "protestatio" meaning "a declaration or affirmation" and the suffix "-ion" indicating a state or condition. it was first used in english in the 14th century.

Examples:

1. The businessman made a protestation of his innocence.
2. The government's protestation that it was not involved in the scandal was met with skepticism.
3. The employee made a protestation that he had been treated unfairly.
4. He made a protestation of love for her.
5. The lawyer made a protestation of his client's constitutional rights.