Definition of solidus
1
: an ancient Roman gold coin introduced by Constantine (4th century) and used to the fall of the Byzantine Empire (15th century)
2
[Medieval Latin, shilling, from Late Latin; from its use as a symbol for shillings]
: slash sense 4
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Merriam-Webster unabridged
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Time Traveler for solidus
The first known use of solidus was in the 14th century
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