denarius

UK: /dɪˈnɛərɪəs/ US: (di nâr′ē əs)

WordReference Random House Unabridged Dictionary of American English © 2026

de•nar•i•us  (di nâr′ē əs), n., pl. -nar•i•i 

(-nâr′ē ī′). 
1. Antiquity, Currency a silver coin and monetary unit of ancient Rome, first issued in the latter part of the 3rd century b.c., that fluctuated in value and sometimes appeared as a bronze coin.
2. Antiquity, Currency a gold coin of ancient Rome equal to 25 silver denarii;
   aureus.

• Latin dēnārius, origin, originally adjective, adjectival: containing ten (asses). See denary

Collins Concise English Dictionary © HarperCollins Publishers::

denarius / dɪˈnɛərɪəs/ noun ( -narii / -ˈnɛərɪˌaɪ/)

1. a silver coin of ancient Rome, often called a penny in translation
2. a gold coin worth 25 silver denarii

Etymology: 16th Century: from Latin: coin originally equal to ten asses, from dēnārius (adj) containing ten, from dēnī ten each, from decem ten