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amethyst

[am-uh-thist] /ˈæm ə θɪst/
noun
1.
a purple or violet quartz, used as a gem.
2.
a purplish tint.
adjective
3.
having the color of amethyst.
4.
containing or set with an amethyst or amethysts:
an amethyst brooch.
Origin
1250-1300
1250-1300; < Latin amethystus < Greek améthystos not intoxicating, not intoxicated (so called from a belief that it prevented drunkenness), equivalent to a- a-6 + methys- (variant stem of methýein to intoxicate; see methylene) + -tos verbal adjective suffix; replacing Middle English ametist < Anglo-French ametiste < Latin
Related forms
amethystine
[am-uh-this-tin, -tahyn] /ˌæm əˈθɪs tɪn, -taɪn/ (Show IPA),
adjective
amethystlike, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for amethysts'

amethyst

/ˈæmɪθɪst/
noun
1.
a purple or violet transparent variety of quartz used as a gemstone. Formula: SiO2
2.
a purple variety of sapphire; oriental amethyst
3.
the purple colour of amethyst
Derived Forms
amethystine (ˌæmɪˈθɪstaɪn) adjective
Word Origin
C13: from Old French amatiste, from Latin amethystus, from Greek amethustos, literally: not drunken, from a-1 + methuein to make drunk; referring to the belief that the stone could prevent intoxication
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for amethysts'

amethyst

n.

violet quartz, late 13c., ametist, from Old French ametiste (Modern French améthyste) and directly from Medieval Latin amatistus, from Latin amethystus, from Greek amethystos "amethyst," literally "not intoxicating," from a- "not" + methyskein "make drunk," from methys "wine" (see mead (n.1)); based on the stone's ancient reputation for preventing drunkenness, which was perhaps sympathetic magic suggested by its wine-like color. People wore rings made of it before drinking. Spelling restored from Middle English ametist.

Online Etymology Dictionary, © 2010 Douglas Harper
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amethysts' in Science
amethyst
  (ām'ə-thĭst)   
A purple or violet, transparent form of quartz used as a gemstone. The color is caused by the presence of iron compounds in the crystal structure.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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amethysts' in the Bible

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.

Easton's 1897 Bible Dictionary
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