Plural form of 'daunid,' possibly referring to an ancient Roman coin or measure (extremely obscure or possibly obsolete).
This appears to be a classical or numismatic term with uncertain etymology. If it exists, it likely derives from Latin 'daunii' referring to an ancient Italian people or possibly monetary units.
Some words survive only in specialized academic literature about numismatics, archaeology, or classical studies—'daunii' is so obscure it might exist primarily as a historical footnote that almost no contemporary speakers would recognize.
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