Coric is a suffix used to create new terms for genders centered around "core" aesthetics. For example, a gender centered around cottagecore would be cottagecoric. These genders are inherently aesthetigenders, and many are xenic in nature.
Coric genders can only be created if a "core" for that concept exists.
Core aesthetics are a concept created on Tumblr. A word is put in front of the word to encapsulate a range of emotions and images that word can evoke. For example, cottagecore is based around comfortable images of simple living and coziness. Arcadecore would be based on images or feelings associated with modern and retro arcades.
Coric was coined by an anonymous submitter to the Tumblr blog beyond-mogai-pride-flags on February 15, 2019. The flag was created by mod Fy on beyond-mogai-pride-flags on February 20, 2019. The alternate flag was designed by a Wikia FANDOM user. The heart in the flag comes from how "core" comes from heart, and it was designed to not use many colors to look aesthetically pleasing and because most coric aesthetics don't use many colors.