Fnévre

Fnévre is a term used primarily in speculative fiction and online discussions to describe a hypothetical phenomenon, substance, or concept whose meaning varies by context. There is no single canonical definition of fnévre; different authors and communities attribute different properties to it, ranging from a form of energy or material to a social or cognitive force.

The etymology of fnévre is not standardized. It appears in fan-created texts and role-playing contexts, often written with the acute accent on the e to signal a distinct pronunciation, and sometimes treated as belonging to a constructed language repertoire. In published works, capitalization and diacritics are used variably.

In fiction, fnévre is commonly depicted as a luminous or disruptive force that affects technology, biology, or memory. In discourse outside of narrative texts, it is used as a metaphor for latent potential, collective mood, or emergent properties of groups or systems. Because of this flexibility, fnévre functions as a flexible placeholder in world-building and speculative debate, rather than as a defined, universally accepted concept.

As a non-standard or nascent term, fnévre lacks formal entries in major dictionaries or glossaries. References to fnévre appear in individual works, fan wikis, and online discussions, each of which may ascribe its own interpretation.