I recently revised the names and some of the features of the genders of the Elven “Realm.” The genders are based on elements (with names suggested by Tolkien Elf deities and words, source: Silmarillion), shapeshifting and gendershifting capacities, transitions from one gender to another, forms of reproduction, and other factors. In The Realm, Elf gender is determined through complex arrangements of stars, elements, seasons, and other natural and supernatural factors at birth.

Prior to this revision, the gender names were based on the Celtic tradition of faery cities, but it seemed best to go with the influences of a fictional, literary tradition–in this case, Tolkien.