N-gender is an umbrella term for genders prefixed with N and adjacents.
It includes none, neither, neutral, null, non-binary, nongender, nullary, neutrois, nulltrois, nanogender, and many other identities.
The term N-gender can represent any gender marker that can be used in place of F and M genders.
History
The term was coined by Tumblr user imoga-pride on January 31, 2019.[1]