Nyctogender

Nyctogender is a colorgender where one's gender is pure darkness. It could also be a gender consisting of darkness or relating to it. One who is nyctogender could also feel darkness validates their gender. This can be used as a prefix for other genders such as nyctoboy, nyctogirl, nyctononbinary, and so on.

History
This term was coined on or before September 27, 2014 on Tumblr account MOGAI-Archive by user wynter-caelum.

Flags
The first flag was created on September 7, 2015 by Pride-Flags on DeviantArt. The flag's color meanings are currently unknown. The second pride flag was created by an unknown user on or before September 15, 2016. The flag's color meanings are currently unknown.

The Nyctoboy and Nyctogirl flags were created by DeviantArt user Pride-Flags on May 28, 2018. Both of the flags' color meanings are currently unknown.

Etymology
The prefix nycto- is an alternative form of nyct- which is derived from the Ancient Greek prefix "νυκτ-" which means "night" or "darkness."