A more thorough explanation:

Definition: A legator is someone who leaves a legacy or bequeaths something in their will. They are also known as a testator.

Example: When John passed away, he left his entire estate to his daughter. In his will, he was the legator and his daughter was the beneficiary.

Explanation: The example illustrates how John was the legator because he left something behind in his will. His daughter was the beneficiary because she received the legacy that John left behind. Legators are important because they ensure that their assets are distributed according to their wishes after they pass away.