A more thorough explanation:

Definition: A commettant is an employer or the principal in an agency relationship.

Example 1: John hired a lawyer to represent him in court. John is the commettant in this situation.

Example 2: Mary owns a small business and hires employees to work for her. Mary is the commettant in this situation.

These examples illustrate the definition of commettant as the person or entity who hires or employs someone else to perform a task or provide a service. In both examples, John and Mary are the ones who have hired someone to work for them, making them the commettants.