- Today's Word
Evanescent
ev-uh-NES-ent
Definition
(adjective) Tending to vanish or fade quickly; lasting only a brief time before disappearing entirely.
Example
The sense of possibility that hung over the first week of the project was evanescent — vivid and real and gone before anyone thought to hold onto it.
Word Origin
Evanescent derives from the Latin evanescere, meaning “to vanish” or “to disappear” — built from e- (“out”) and vanescere (“to become empty”), from vanus meaning “empty.” The same root gives us vanish, vanity, and evaporate — all words built around the image of something becoming empty, dispersing into nothing. It entered English in the 18th century, used in scientific contexts to describe phenomena that appeared briefly and could not be sustained before acquiring its broader sense of anything too fleeting to hold.
Fun Fact
The evanescence of human memory is one of psychology’s most studied and most counterintuitive phenomena. Research by Elizabeth Loftus has demonstrated repeatedly that memories — even vivid, emotionally significant ones — are not recordings but reconstructions, rebuilt slightly differently each time they are accessed. The memory of an event begins fading and distorting almost immediately after the event occurs, which means the most accurate version of any memory is the one you have right after the experience ends — before reconstruction begins. Every subsequent remembering makes it slightly less accurate and slightly more evanescent, which raises uncomfortable questions about everything we think we remember clearly.
