Webster's Revised Unabridged Dictionary · 1913

Amethyst

Amethyst ({not transcribed})

[French ametiste, amatiste, French améthyste, Latin amethystus, from Greek {not transcribed} without drunkenness; as a noun, a remedy for drunkenness, the amethyst, supposed to have this power; 'a priv. + {not transcribed} to be drunken, {not transcribed} strong drink, wine. See Mead.]

1.
(Mineralogy) A variety of crystallized quartz, of a purple or bluish violet color, of different shades. It is much used as a jeweler's stone.
Collocations (1)
Oriental amethyst , the violet-blue variety of transparent crystallized corundum or sapphire.
2.
(Heraldry) A purple color in a nobleman's escutcheon, or coat of arms.