A more thorough explanation:

idoneitas

Idoneitas is a Latin word that means a person's ability or fitness to do something.

• John's idoneitas for the job was evident from his experience and skills.
• The coach assessed the players' idoneitas before selecting the team for the match.

The examples show how idoneitas refers to a person's suitability or fitness for a particular task or role. In the first example, John's idoneitas is based on his experience and skills, which make him a good fit for the job. In the second example, the coach evaluates the players' idoneitas to determine who is best suited for the team based on their abilities and performance.