Agingender (shortened to Agin) is a term for all genders which are agender/agenrine in nature (AGIN). It can be used as an umbrella term for any genders that are primarily related to agenderness and/or genderlessness. It can also be used as a gender on its own, referring to any gender that may not be fully defined by genderlessness but is still related to genderlessness, or a gender in which genderlessness is its defining feature but the gender is not purely agender. It's often used by people who cannot narrow down their gender any more than being agender-spec/agenrine, but still definitely not fully agender.
History
Agingender and the flag were created by imoga-pride on January 13, 2019.[1]