sfumare

Etymology
From.

Verb

 * 1)  to soften or lighten
 * 2)  to boil on a low heat
 * 3)  to taper (hair at the back of the neck)
 * 4)  to fade or fade away
 * 5)  to vanish, disappear
 * 6)  to begin to resemble; to lighten
 * 7)  to fade
 * 8)  to blur (edges, borders, etc.)
 * 1)  to fade
 * 2)  to blur (edges, borders, etc.)
 * 1)  to blur (edges, borders, etc.)