fade (v.)

early 14c., "lose brightness, grow pale," from Old French fader "become weak, wilt, wither," from fade (adj.) "pale, weak; insipid, tasteless" (12c.), probably from Vulgar Latin *fatidus, which is said to be a blending of Latin fatuus "silly, tasteless" and vapidus "flat, flavorless." Related: Faded; fading. Of sounds, by 1819. Transitive sense from 1590s; in cinematography from 1918.

Adieu! adieu! thy plaintive anthem fades
  Past the near meadows, over the still stream,
    Up the hill-side; and now 'tis buried deep
      In the next valley-glades:
Was it a vision, or a waking dream?
  Fled is that music:" Do I wake or sleep?
[Keats, from "Ode to a Nightingale"]

fade (n.)

early 14c., "loss of freshness or vigor," from fade (adj.), c. 1300, " lacking in brilliance; pale, discolored, dull," from Old French fade (see fade (v.)). As a type of tapering hairstyle from 1988 (fade-out style is in a 1985 "Ebony" article on men's haircuts).

Definitions of fade
fade (v.)
become less clearly visible or distinguishable; disappear gradually or seemingly;
The scene begins to fade
Synonyms: melt
fade (v.)
lose freshness, vigor, or vitality;
Synonyms: wither
fade (v.)
disappear gradually;
Synonyms: evanesce / blow over / pass off / fleet / pass
fade (v.)
become feeble;
Synonyms: languish
fade (n.)
a golf shot that curves to the right for a right-handed golfer;
Synonyms: slice / slicing
fade (n.)
gradually ceasing to be visible;
Synonyms: disappearance