Avarice (noun)

1. An excessive or insatiable desire for wealth or material gain.
2. Greed for money or material possessions.

Origin:

From latin avaritia, from avarus "greedy".

Examples:

1. His avarice led him to take advantage of others for personal gain.
2. The avarice of the CEO led to the downfall of the company.
3. His avarice was insatiable, he always wanted more.
4. Her avarice was the root of all her problems.
5. The avarice of the wealthy was the source of the inequality in the society.