Evanescence

n. fading away, vanishing, disappearing

Evanescence is a Grammy Award-winning American alternative rock band founded in Little Rock, Arkansas in 1998 by singer Amy Lee and former guitarist Ben Moody. After recording two private EPs, and a demo CD named Origin with the help of Bigwig Enterprises, the band released their first full-length album, Fallen, on the Wind-up Records label in 2003. Fallen sold more than 14 million copies worldwide and helped the band win two Grammy Awards. After abrupt changes to the band's lineup, Evanescence released their second studio album, The Open Door, in 2006.
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Noun
1. the event of fading and gradually vanishing from sight; "the evanescence of the morning mist"
(hypernym) disappearance
(derivation) evanesce, fade, blow over, pass off, fleet, pass

n. evanescence, fading away

(n.)
The act or state of vanishing away; disappearance; as, the evanescence of vapor, of a dream, of earthly plants or hopes.