Definition of aureus
plural -rei \-ē-ˌī\
: a gold coin of ancient Rome varying in weight from 1⁄30 to 1⁄70 libra
Origin of aureus
Latin, literally, golden, from aurum gold; akin to Old Prussian ausis gold
First Known Use: 1609
Learn More about aureus
Britannica.com: Encyclopedia article about "aureus"
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