1. A purple or violet form of transparent quartz used as a gemstone.
2. A purple variety of corundum used as a gemstone.
3. A moderate purple to grayish reddish purple.
[Middle English amatist, from Old French, from Latin amethystus, from Greek amethustos, not drunk or intoxicating, remedy for intoxication, amethyst : a-, not; see A-1 + methuskein, to intoxicate (from methuein, to be drunk, from methu, wine; see medhu- in the Appendix of Indo-European roots).]
am′e·thystine (-thĭstĭn, -tīn′) adj.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.