Entrogender

 is a genderflux term for a gender that is consistently fading away.

Etymology

 * "Entro" from the word "entropy."

Definitions

 * Definition: A gender that is slowly but constantly wearing away. Can also be used like “demi,” e.g. an entrogirl might be someone who identifies as female while that femaleness is gradually deteriorating. - gyey's submission to MOGAI-archive, 2014

History
Entrogender was coined by a Tumblr user named gyey who submitted the term to MOGAI-archive. Purrloinsucks, a Tumblr blog that archived posts from MOGAI-archive, has a reblog of the original coining post dated August 26th, 2014.