Gaslighting

https://apnews.com/article/word-of-the-year-2022-80d02a3e0a347e542466571ca9cdb2ef

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via Wikipedia:

Gaslighting is a colloquialism, loosely defined as manipulating someone so as to make them question their own reality. The term derives from the title of the 1944 American film Gaslight, though the term did not gain popular currency in English until the mid-2010s.

The term may also be used to describe a person (a "gaslighter") who presents a false narrative to another group or person, thereby leading them to doubt their perceptions and become misled, disoriented or distressed. Oftentimes this is for the gaslighter's own benefit. Normally, this dynamic is possible only when the audience is vulnerable, such as in unequal power relationships, or fearful of the losses associated with challenging the false narrative.

General techniques of gaslighting:

・Withholding
Abuser pretends not to understand the victim.

・Countering
Abuser will vehemently call into question a victim's memory in spite of the victim having remembered things correctly.

・Blocking and diverting
Abuser again changes the conversation from the subject matter to questioning the victim's thoughts and controlling the conversation.

・Trivializing
Abuser makes the victim believe his or her thoughts or needs aren't important.

・Forgetting and denial
Abuser pretends to forget things that have really occurred; the abuser may deny or delay things like promises that have been made that are important to the victim. This denying or delaying, while everyone does it, in the gaslighter occurs on a regular basis in the absence of real external limitations. The gaslighter may make up or create artificial barriers to allow him/herself to deny or delay that which is important to the victim.

via: https://en.wikipedia.org/wiki/Gaslighting