Exhaustion (noun)

1. The state of being extremely tired as a result of physical or mental effort.
2. The depletion of a resource.
3. The state of being completely used up or worn out.

Origin:

Late middle english (in the sense "the action of exhausting"): from latin exhaustio(n-), from ex- "out" + haustus "a drawing", from haurire "draw out".

Examples:

1. He was suffering from exhaustion after the marathon.
2. The war resulted in the exhaustion of the country's resources.
3. The project was completed despite the exhaustion of the team.
4. The long hike left him in a state of exhaustion.
5. The exhaustion of the oil reserves is a major concern for the country.