Select the most appropriate one-word substitution for the given group of words.

A person's extreme desire to steal 

Kleptomania

The most appropriate one-word substitution for "a person's extreme desire to steal" is kleptomania.

• Plutomania is an intense desire for wealth or material possessions.
• Insomnia is the inability to sleep.
• Morbid is having an unhealthy or unhealthy interest in death or disease.
• Kleptomania is a mental disorder characterized by an irresistible urge to steal.