em·er·ald (ĕmər-əld, ĕmrəld)
1. A brilliant green to grass-green transparent variety of beryl, used as a gemstone.
2. A strong yellowish green.
Of a strong yellowish green.
[Middle English emeraude, from Old French, from Medieval Latin esmeralda, esmeraldus, from Latin smaragdus, from Greek smaragdos; akin to Sanskrit marakatam, probably of Semitic origin; akin to Akkadian barraqtu and Hebrew bāreqet, a kind of gemstone (probably emerald); see brq in the Appendix of Semitic roots.]
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.