Absgender

 is a gender modality that is neither cis nor trans.

Etymology
From Latin, “Abs-”, a prefix meaning “away (from)”, in this case referring to being conceptually ‘away’ from explicit cisgenderness/cisness and transgenderness/transness.

Definitions

 * A genderedness that is between, beyond or removed from the Cisgender/Transgender dichotomy; a gender that is neither Cisgender nor Transgender. - Gender-Resources, 2020

While it was coined as an alternative to Isogender, the two do seem to have subtly different definitions.

“Abs-” can be used as a prefix in the same way that “Cis-” or “Trans-” can be used as prefixes to discuss one’s gender, sex, etc in relation to their assignment.

History
User Arco-Pluris asked Gender-Resources to coin an alternative word for Isogender.

Subsets

 * Abssex
 * Lapisfem
 * Fulgurmasc