AMETHYST
amethyst
(adjective) of a moderate purple color
amethyst
(noun) a transparent purple variety of quartz; used as a gemstone
Source: WordNet® 3.1
Etymology
Proper noun
Amethyst
A female given name
Etymology
Noun
amethyst (plural amethysts)
A transparent purple variety of quartz, used as a gemstone.
(uncountable) A purple colour.
(tincture) The purple tincture when emblazoning the arms of the English nobility.
Adjective
amethyst (comparative more amethyst, superlative most amethyst)
Having a colour similar to that of the gemstone
Source: Wiktionary
Am"e*thyst, Etym: [F. ametiste, amatiste, F. améthyste, L.
amethystus, fr. Gr. Mead.]
1. (Min.)
Definition: A variety of crystallized quartz, of a purple or bluish violet
color, of different shades. It is much used as a jeweler's stone.
Oriental amethyst, the violet-blue variety of transparent
crystallized corundum or sapphire.
2. (Her.)
Definition: A purple color in a nobleman's escutcheon, or coat of arms.
Source: Webster’s Unabridged Dictionary 1913 Edition