Denarius

Denarius of Mark Antony and Octavian, struck at Ephesus in 41 BC. The coin commemorated the two men's defeat of Brutus and Cassius a year earlier as well as celebrating the new Second Triumvirate.
Top row (left to right): 157 BC Roman Republic, 73 AD Vespasian, 161 AD Marcus Aurelius, 194 AD Septimius Severus;
Second row (left to right): 199 AD Caracalla, 200 AD Julia Domna, 219 AD Elagabalus, 236 AD Maximinus Thrax

The denarius (Latin: [deːˈnaːriʊs]; pl.: dēnāriī, Latin: [deːˈnaːriiː]; symbol: 𐆖) was the standard Roman silver coin from its introduction in the Second Punic War c. 211 BC to the reign of Gordian III (AD 238–244), when it was gradually replaced by the antoninianus. It continued to be minted in very small quantities, likely for ceremonial purposes, throughout the Tetrarchy (293–313).

The word dēnārius is derived from the Latin dēnī "containing ten", as it was originally worth 10 assēs. The word for "money" descends from it in Italian (denaro), Slovene (denar), Portuguese (dinheiro), and Spanish (dinero). Its name also survives in the dinar currency.

Its symbol is represented in Unicode as 𐆖 (U+10196), a numeral monogram that appeared on the obverse in the Republican period, denoting the 10 asses ("X") to 1 denarius ("I") conversion rate.