Evanesce
Pronunciation : Ev`a*nesce"
Part of Speech : v.
Etymology : [L. evanescere; e out + vanescere to vanish, fr. vanus empty, vain. See Vain, and cf. Evanish.]
Definition : Defn: To vanish away; to because dissipated and disappear, like vapor. I believe him to have evanesced or evaporated. De Quincey.
i. [imp. & p. p. Evanesced; p. pr. & vb. n. Evanescing. (.]
Source : Webster's Unabridged Dictionary, 1913