Nostic
-nostic is a suffix used for xenogenders relating to nostalgia. An example could be sunnynostic. Sunnynostic is a xenogender that is connected to fuzzy and warm feelings of nostalgia, sunsets, sunflowers, etc. There’s many subsets of Nostic genders, listed in the category.
History and Flags
On 2021/8/10, user mogai-sunflowers coined the term on tumblr. On 2022/7/18, user Xinaphoria created the flag.
Sources
https://www.tumblr.com/blog/view/mogai-sunflowers/659166295614521344?source=share