A more thorough explanation:

Negotium is a Latin term used in Roman law. It has several meanings:

1. A matter or affair, such as a legal case or issue.
2. A transaction or agreement between two parties.
3. A trade or business, such as buying and selling goods.
4. A civil or criminal trial, where legal matters are resolved.

Here are some examples of how negotium can be used:

• When a person is absent, their legal matters become negotium absentis.
• When two parties agree to a contract, it becomes a negotium between them.
• When someone buys and sells goods, they are engaging in negotium commerciale.
• When a legal case goes to court, it becomes a negotium iudiciale.

These examples show how negotium can refer to different types of legal and business matters.