A more thorough explanation:

Definition: Justa causa is a Latin term used in civil law to refer to a lawful ground or a just cause. It is a reason that is legally sufficient to take action or to hold someone responsible for an event or consequence.

Example: In an employment contract, justa causa may be used to refer to a legally sufficient reason for terminating an employee. For instance, if an employee violates a company policy or engages in misconduct, the employer may have justa causa to terminate their employment.

This example illustrates how justa causa is a lawful ground for taking action. In this case, the employer has a just cause for terminating the employee's contract because they violated a company policy.

Example: In a negligence case, justa causa may be used to refer to a cause that is legally sufficient to result in liability. For instance, if a driver causes an accident due to reckless driving, they may be held liable for the damages caused. The reckless driving is justa causa for the accident.

This example illustrates how justa causa is a reason that is legally sufficient to hold someone responsible for an event or consequence. In this case, the reckless driving is justa causa for the accident, and the driver may be held liable for the damages caused.