A more thorough explanation:

Definition: Gubernator navis is a Latin term that means "ship helmsman" in English. In Roman law, it refers to the pilot or steersman of a ship. If the gubernator navis negligently causes a collision, he can be sued for damages.

When a ship is sailing, the person who is responsible for steering the ship is called the gubernator navis. If the ship collides with another ship due to the negligence of the gubernator navis, the injured party can sue for damages.

For example, if a ship is sailing in a busy port and the gubernator navis fails to pay attention to the other ships around him, causing a collision, he can be held liable for any damages that result from the accident.

Another example would be if the gubernator navis is under the influence of drugs or alcohol while steering the ship, and this leads to a collision. In this case, he can be sued for damages and may also face criminal charges.

These examples illustrate how the term gubernator navis is used in Roman law to refer to the person who is responsible for steering a ship and how he can be held liable for any damages that result from his negligence.