Caegender is a xenogender connected to the sky. Its name comes from the Latin word "caelum," which means sky.
History
The term was coined by reddit user u/Powerful_Valuable_56, on 6 January, 2021[1].
Flag
The flag was created by CosmicSnowstorm on January 7th, 2021. The colors of the flag were based on the colors of the sky (shades of blue for a clear sky, gray for storms, yellow for the sun, and the cloud symbol for a cloudy day with fair weather).
References
https://web.archive.org/web/https://photos.app.goo.gl/5Daswv9YXMk4WsoXA
https://web.archive.org/web/https://lgbta.wikia.org/f/p/4400000000000076313