A more thorough explanation:

Definition: An introduction in a speech or writing, especially in a will. In a will, the exordium usually contains statements of the testator's name and capacity to make the will. It is also known as an exordium clause or introductory clause.

Example 1: The exordium of the speech was used to capture the audience's attention and introduce the topic.

Example 2: In the will, the exordium clause stated the name of the testator and their capacity to make the will.

The examples illustrate how the exordium is used to introduce a topic or document and provide important information, such as the name of the speaker or writer and their authority to speak or write on the topic.