[1] : The Collaborative International Dictionary of English v.0.48

amethyst \am"ethyst\, f. ametiste, amatiste, f. am'ethyste,
   l. amethystus, fr. gr. ? without drunkenness; as a noun, a
   remedy for drunkenness, the amethyst, supposed to have this
   power; 'a priv. + ? to be drunken, ? strong drink, wine. see
   mead.
   1913 webster
   1. min. a variety of crystallized quartz, of a purple or
      bluish violet color, of different shades. it is much used
      as a jeweler's stone.
      1913 webster

   oriental amethyst, the violet-blue variety of transparent
      crystallized corundum or sapphire.
      1913 webster

   2. her. a purple color in a nobleman's escutcheon, or coat
      of arms.
      1913 webster
see also:
mead oriental amethyst 

[2] : The Collaborative International Dictionary of English v.0.48

colorful \colorful\ adj.
   1. having striking color. opposite of colorless.

   note: narrower terms: changeable, chatoyant, iridescent,
         shot; deep, rich; flaming; fluorescent, glowing;
         prismatic; psychedelic; red, ruddy, flushed,
         empurpled

   syn: colourful.
        wordnet 1.5

   2. striking in variety and interest. opposite of colorless
      or dull. narrower terms: brave, fine, gay, glorious;
      flamboyant, resplendent, unrestrained; flashy, gaudy,
      jazzy, showy, snazzy, sporty; picturesque
      wordnet 1.5

   3. having color or a certain color; not black, white or grey;
      as, colored crepe paper. opposite of colorless and
      monochrome.

   note: narrower terms: tinted; touched, tinged; amber,
         brownish-yellow, yellow-brown; amethyst; auburn,
         reddish-brown; aureate, gilded, gilt, gold, golden;
         azure, cerulean, sky-blue, bright blue; bicolor,
         bicolour, bicolored, bicoloured, bichrome; blue,
         bluish, light-blue, dark-blue; blushful,
         blush-colored, rosy; bottle-green; bronze, bronzy;
         brown, brownish, dark-brown; buff; canary,
         canary-yellow; caramel, caramel brown; carnation;
         chartreuse; chestnut; dun; earth-colored,
         earthlike; fuscous; green, greenish, light-green,
         dark-green; jade, jade-green; khaki; lavender,
         lilac; mauve; moss green, mosstone; motley,
         multicolor, culticolour, multicolored, multicoloured,
         painted, particolored, particoloured, piebald, pied,
         varicolored, varicoloured; mousy, mouse-colored;
         ocher, ochre; olive-brown; olive-drab; olive;
         orange, orangish; peacock-blue; pink, pinkish;
         purple, violet, purplish; red, blood-red, carmine,
         cerise, cherry, cherry-red, crimson, ruby, ruby-red,
         scarlet; red, reddish; rose, roseate; rose-red;
         rust, rusty, rust-colored; snuff, snuff-brown,
         snuff-color, snuff-colour, snuff-colored,
         snuff-coloured, mummy-brown, chukker-brown; sorrel,
         brownish-orange; stone, stone-gray; straw-color,
         straw-colored, straw-coloured; tan; tangerine;
         tawny; ultramarine; umber; vermilion,
         vermillion, cinibar, chinese-red; yellow, yellowish;
         yellow-green; avocado; bay; beige; blae
         bluish-black or gray-blue; coral; creamy; cress
         green, cresson, watercress; hazel; honey,
         honey-colored; huedpostnominal; magenta;
         maroon; pea-green; russet; sage, sage-green;
         sea-green also see: chromatic, colored, dark,
         light.

   syn: colored, coloured, in colorpredicate.
        wordnet 1.5
see also:
colorless changeable, chatoyant, iridescent, shot deep, rich flaming fluorescent, glowing prismatic 
psychedelic red, ruddy, flushed, empurpled dull brave, fine, gay, glorious flamboyant, resplendent, unrestrained 
flashy, gaudy, jazzy, showy, snazzy, sporty picturesque monochrome tinted touched, tinged 
amber, brownish-yellow, yellow-brown amethyst auburn, reddish-brown aureate, gilded, gilt, gold, golden azure, cerulean, sky-blue, bright blue 
bicolor, bicolour, bicolored, bicoloured, bichrome blue, bluish, light-blue, dark-blue blushful, blush-colored, rosy bottle-green bronze, bronzy 
brown, brownish, dark-brown buff canary, canary-yellow caramel, caramel brown carnation 
chartreuse chestnut dun earth-colored, earthlike fuscous 
green, greenish, light-green, dark-green jade, jade-green khaki lavender, lilac mauve 
moss green, mosstone motley, multicolor, culticolour, multicolored, multicoloured, painted, particolored, particoloured, piebald, pied, varicolored, varicoloured mousy, mouse-colored ocher, ochre olive-brown 
olive-drab olive orange, orangish peacock-blue pink, pinkish 
purple, violet, purplish red, blood-red, carmine, cerise, cherry, cherry-red, crimson, ruby, ruby-red, scarlet red, reddish rose, roseate rose-red 
rust, rusty, rust-colored snuff, snuff-brown, snuff-color, snuff-colour, snuff-colored, snuff-coloured, mummy-brown, chukker-brown sorrel, brownish-orange stone, stone-gray straw-color, straw-colored, straw-coloured 
tan tangerine tawny ultramarine umber 
vermilion, vermillion, cinibar, chinese-red yellow, yellowish yellow-green avocado bay 
beige blae bluish-black or gray-blue coral creamy cress green, cresson, watercress 
hazel honey, honey-colored huedpostnominal magenta maroon 
pea-green russet sage, sage-green sea-green chromatic 
colored dark light 

[3] : WordNet (r) 2.0

amethyst
     adj : of a moderate purple color
     n : a transparent purple variety of quartz; used as a gemstone

[4] : Easton's 1897 Bible Dictionary

amethyst
   one of the precious stones in the breastplate of the high priest
   ex. 28:19; 39:12, and in the foundation of the new jerusalem
   rev. 21:20. the ancients thought that this stone had the power
   of dispelling drunkenness in all who wore or touched it, and
   hence its greek name formed from _a_, "privative," and _methuo_,
   "to get drunk." its jewish name, _ahlamah'_, was derived by the
   rabbins from the hebrew word _halam_, "to dream," from its
   supposed power of causing the wearer to dream.
   
     it is a pale-blue crystallized quartz, varying to a dark
   purple blue. it is found in persia and india, also in different
   parts of europe.
   

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Amethyst, definition of term: Amethyst
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