Debility (noun)

A state of physical or mental weakness or the lack of energy.

Origin:

The word debility is derived from the latin word "debilitas" which means weakness or frailty. the term has been in use since the 16th century to refer to a physical or mental condition characterized by weakness or lack of energy.

Examples:

1. The illness left her in a state of debility, unable to care for herself.
2. The old man was plagued by debility and had to rely on a wheelchair.
3. The debility caused by the disease made it difficult for him to work.
4. The debility and fatigue caused by the chemotherapy treatment made it hard for her to function.
5. The debility of his body was a result of years of neglect and poor health.