Regregender

 is a gender that one feels during regression, either with age regression, or with pet regression. It can be flux, fluid, or static and may be similar or different than one’s gender when non-regressed, or may be linked to another gender related to the type of regression.

Etymology
Presumably "regression" + "gender."

Definitions

 * regregender: a gender that one feels during regression, either with age regression, or with pet regression. can be flux, fluid, or static. may be similar or different than one’s gender when non-regressed, + may be linked to another gender related to the type of regression (ex. a regregender pet cat regressor being felisgender while regressed, + another gender when not, or feeling more felisgender when regressed). - hostagender, 2020

The original definition specifies that this is similar, but slightly different to Regressigender."Age regression occurs when someone reverts to a younger state of mind. This retreat may be only a few years younger than the person’s physical age. It could also be much younger, into early childhood or even infancy.

People who practice age regression may begin showing juvenile behaviors like thumb-sucking or whining. Others may refuse to engage in adult conversations and handle issues they’re facing.

Age regression is sometimes used in psychology and hypnotherapy. It can also be used as a self-help tool, or something someone does to reduce stress."

- Understanding Age Regression

History
The original coiner's Tumblr blog is deleted, but an archived reblog exists dated September 8th, 2020.