noun / verb
blackmail
BLAK-mayl/ˈblækmeɪl/
Forcing someone to comply by threatening to reveal damaging information.
The threat to reveal the compromising photograph turns the demand for money into blackmail.

Etymology
Here “black” marks the evil of the practice, while “mail” means tribute: originally, payment demanded for protection against pillage. The meaning broadened to extortion by intimidation, especially threats to expose damaging information.
In context
you manifested, several times, in a manner there was no mistaking, both by words and deeds, an intention of levying blackmail on me by using your knowledge of my ridiculous, unmaidenly act.
More examples
- He tried to blackmail the official into changing her vote.
- The witness reported being blackmailed by a former colleague.
- The plot revolves around a failed attempt at blackmail.
Forms
blackmail · blackmails · blackmailed · blackmailing