Cinctaneu is a xenogender based on having many genders, yet still having a static non-binary gender in the middle.
The feminine version of this term is cinctagirl, and the masculine version of this term is cinctaboy.
History & Flag
The term cinctaneu was coined by Tumblr user pupyzu on March 1st, 2021[1], along with cinctagirl and cinctaboy. The flag was created with the term on the same date.
Etymology
The meaning of the term is based off of "-neu" for gender neutrality & "cincta", which means 'surrounded' in Latin.