Bibliogender

 is a xenogender related to or best described by old books and the knowledge they contain. It is a vast and mysterious gender. The gender can be described as containing age-old secrets, old and not completely comprehensible, and/or written in a language that has faded from memory.

Definitions

 * Bibliogender is a gender relating to old books and their containment of knowledge. Can be taken to mean that the gender contains age-old secrets, the gender is old and not completely comprehensible, the gender is written in a language that has faded from memory. The user can identify with any of these or something similar but the gender inextricably relates to old books. This gender is generally considered vast and mysterious. It cannot be compared to the concept of a gender binary. - blurgender, 2021

History
Bibliogender was coined on January 22, 2021 on Tumblr by blurgender.