1) Blow over 2) Disappear 3) Disappear gradually 4) Disappear like vapor 5) Dissipate 6) Dissipate gradually 7) Dissipate like vapor 8) Dissolve 9) Fade 10) Fade away 11) Fade from sight 12) Fleet 13) Go away 14) Gradually disappear 15) Pass 16) Pass off 17) Slowly disappear 18) Slowly fade away 19) To disappear gradually 1) Fade 2) Fadeaway 
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• (v. i.) To vanish away; to become dissipated and disappear, like vapor.
Ev`a·nesce' intransitive verb [ imperfect & past participle Evanesced ; present participle & verbal noun Evanescing . ] [ Latin evanescere ; e out + vanescere to vanish, from vanus empty, vain. See Vain
[v] - disappear gradually
fade verb disappear gradually; `The pain eventually passed off`
to disappear gradually; vanish; fade away.