A more thorough explanation:

Definition: Causidicus (kaw-zid-uh-kuhs) is a Latin term used in Roman law to refer to a speaker or pleader who presented cases orally on behalf of others. It is similar to the term "advocatus."

Examples:

• During the Roman Empire, a causidicus was an important figure in the legal system, representing clients in court and arguing their cases.
• Many famous orators in ancient Rome, such as Cicero, were also skilled causidici and used their speaking abilities to win cases for their clients.

These examples illustrate how a causidicus was a professional who specialized in presenting legal arguments and advocating for clients in court. They were highly respected for their ability to use language and persuasion to win cases, and their role was essential in the Roman legal system.