evanescence

Borrowed from Latin ēvānēscēns, present participle of ēvānēscō (“I vanish, I fade away, I lapse”).

• (UK) IPA^(key): /ˌɛv.əˈnɛs.n̩s/
• (US) IPA^(key): /ˌiː.vəˈnes.n̩s/

evanescence (countable and uncountable, plural evanescences)

1. The act or state of vanishing away; disappearance.

   the evanescence of vapor, of a dream, of earthly plants or hopes. --Rambler

2. The event of fading and gradually vanishing from sight.

   the evanescence of the morning mist.

• evanesce