Dictionary.com
Thesaurus.com

aureus

American  
[awr-ee-uhs] / ˈɔr i əs /

noun

plural

aurei

  1. a gold coin and monetary unit of ancient Rome, from Caesar to Constantine I.

aureus British  
/ ˈɔːrɪəs /

noun

  1. a gold coin of the Roman Empire

"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

Etymology

Origin of aureus

1600–10; < Latin: literally, golden

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.