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tremissis

noun tre·mis·sis \ trə̇ˈmisə̇s \
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Definition of tremissis

plural tremisses \-ˈmiˌsēz\
: a Byzantine triens or a similar gold coin of early western Europe

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Origin and Etymology of tremissis

Late Latin tremis, tremissis, from Latin tres three + -mis, -missis (as in semis, semissis)

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