Arcillean

Arcillean is a xiaspec and fiaspec/fingender gender in the Nadurian System, one of the four Nature Systems. It is related to nature and its aesthetics, and is also aligned with xeninity and femaleness and/or femininity. The term and the flag were coined by FANDOM user Reign of the queerios on or before February 28, 2021.

Etymology
The term 'arcillean' comes from the Spanish word 'arcilla' meaning 'clay'.