Sufficiency (noun)

1. The quality or state of being enough, sufficient, or adequate in amount or degree.
2. An adequate supply or resources to meet a need or requirement.

Origin:

Derived from the latin word 'sufficere' (to be enough), which is a combination of 'sub' (under) and 'facere' (to make or do).

Examples:

1. The sufficiency of food and water is essential for survival.
2. The sufficiency of evidence provided in the trial was enough to convict the accused.
3. The sufficiency of funds for the project has been secured.
4. The sufficiency of preparation for the exam will determine the student's success.
5. The sufficiency of resources is critical for any successful operation.