Kortopism is the term used for the religion of worshipping Kortopi a fictional character from an Anime (Hunter x Hunter) and part of a group called the Phantom Troupe.

n. The birth name of somebody who has changed their name. Most commonly attributed to trans people, but can be attributed to any person who has changed their name. (sometimes written as two words: dead name)

v. 1. To call somebody by their deadname.
v. 2. To out somebody's deadname to the public.