Denarius is a Latin word that refers to a small silver coin used in ancient Rome. It was the standard currency of the Roman Empire, and was typically used for everyday transactions. The denarius was first minted around 211 BC and remained in circulation until the late Roman Empire. It featured various depictions of Roman gods, emperors, and symbols on one side, while the other side typically had an image of a chariot or other Roman iconography. Today, denarii are highly sought after by collectors and can be found in various states of preservation.